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Kinesiology Dictionary

Please use this dictionary of professional kinesiology terms and definitions to help you learn. New terms and definitions will be added on a regular basis for you to learn from. I have decided to extend the dictionary to include terms and definitions from sciences that relate to and support being a kinesiologist or any other healthcare professional. Knowledge itself is power - use the dictionary to empower yourself. Please use the letters in blue below as links to get to the first letter of the term you are looking for. You will be transferred to another page containing those terms and definitions accordingly. Enjoy!

Term
Definition
Associated Field
ATP synthase
Enzyme producing ATP in mitochondria
Biochemistry / Physiology
ATPase
Enzyme that hydrolyzes ATP
Biochemistry / Physiology
Abduction
Movement of a limb away from the midline of the body
Anatomy / Biomechanics
Absorption
Process by which nutrients are taken into the bloodstream
Nutrition / Physiology
Accommodation
Eye lens adjustment to focus on near/far objects
Physiology
Acute injury
Injury with sudden onset and short duration
Sport Injury / First Aid
Adaptation
Adjustment of body to stress or environment
Physiology / Exercise Physiology
Adduction
Movement of a limb toward the midline
Anatomy / Biomechanics
Adenine
Nitrogenous base in DNA and RNA
Genetics / Biochemistry
Adenosine diphosphate (ADP)
Molecule formed after ATP loses one phosphate
Biochemistry / Physiology
Adenosine triphosphate (ATP)
Primary energy carrier in cells
Biochemistry / Physiology
Adenovirus
Virus causing respiratory infections
Biology / Pathophysiology
Adipose tissue
Fat tissue storing energy
Anatomy / Nutrition
Adrenal gland
Endocrine gland producing hormones like cortisol
Anatomy / Physiology
Adrenergic receptor
Receptor responding to adrenaline/noradrenaline
Physiology / Pharmacology
Adson’s test
Clinical test for thoracic outlet syndrome
Exercise Testing / Sport Injury
Aerobic exercise
Exercise requiring oxygen for energy production
Exercise Physiology / Strength & Conditioning
Aerobic metabolism
Energy production using oxygen
Exercise Physiology / Physiology
Agility
Ability to change direction rapidly
Strength & Conditioning / Exercise Physiology
Agonist
Muscle responsible for movement
Biomechanics / Strength & Conditioning
Agoraphobia
Fear of open or crowded spaces
Psychology / Psychiatry
Albumin
Plasma protein maintaining osmotic pressure
Nutrition / Physiology
Albuminuria
Presence of albumin in urine
Pathophysiology / Physiology
Alkaline phosphatase
Enzyme involved in bone metabolism
Biochemistry / Physiology
Alkalosis
Elevated blood pH
Pathophysiology / Physiology
Allostasis
Process of achieving stability through physiological change
Physiology / Psychology
Allosteric site
Non-active site on enzyme influencing activity
Biochemistry / Physiology
Alpha motor neuron
Neuron that stimulates skeletal muscle contraction
Physiology / Motor Behavior
Alpha rhythm
Brainwave pattern seen on EEG
Neuroscience / Psychology
Alpha-linolenic acid
Essential omega-3 fatty acid
Nutrition / Biochemistry
Altered mental status
Change in consciousness or cognition
First Aid / Pathophysiology
Alternating current
Electric current changing direction periodically
Physics / Biomechanics
Alveolar macrophage
Immune cell in alveoli engulfing pathogens
Biology / Physiology
Alveolar ventilation
Volume of air reaching alveoli per minute
Exercise Physiology / Physiology
Alveoli
Tiny air sacs in the lungs for gas exchange
Anatomy / Physiology
Ambulation
Act of walking
Exercise Physiology / Rehabilitation
Amenorrhea
Absence of menstruation
Physiology / Nutrition
Amnesia
Partial or total memory loss
Psychology / Neuroscience
Amygdala
Brain region involved in emotion processing
Psychology / Neuroscience
Amylase
Enzyme breaking down starch
Biochemistry / Nutrition
Amyotrophic lateral sclerosis
Neurodegenerative disease affecting motor neurons
Neurology / Motor Behavior
Anabolism
Process of building complex molecules from simpler ones
Biochemistry / Physiology
Anaerobic metabolism
Energy production without oxygen
Exercise Physiology / Physiology
Anal sphincter
Muscle controlling defecation
Anatomy / Physiology
Analgesia
Absence of pain
First Aid / Physiology
Analysis of variance
Statistical method to compare group means
Sociology / Psychology
Anaphylactic shock
Life-threatening allergic reaction
First Aid / ACLS
Anaphylaxis
Severe allergic reaction
First Aid / ACLS
Anatomy
Study of body structure
Anatomy
Anatomy lab
Laboratory for studying human/animal structure
Anatomy / Education
Androgen
Male sex hormone
Physiology / Endocrinology
Anemia
Deficiency of red blood cells or hemoglobin
Nutrition / Physiology
Anemia ferriprive
Iron-deficiency anemia
Nutrition / Physiology
Anemia perniciosa
Vitamin B12 deficiency anemia
Nutrition / Physiology
Angina
Chest pain due to reduced blood flow to the heart
Pathophysiology / ACLS
Angiogenesis
Formation of new blood vessels
Physiology / Pathophysiology
Angular momentum
Rotational equivalent of linear momentum
Physics / Biomechanics
Angular velocity
Rate of change of angular position
Biomechanics / Physics
Ankle dorsiflexion
Upward movement of the foot at the ankle
Biomechanics / Exercise Physiology
Ankle inversion
Inward movement of the foot
Biomechanics / Exercise Physiology
Ankle plantarflexion
Downward movement of the foot
Biomechanics / Exercise Physiology
Ankle sprain
Injury to ligaments of the ankle
Sport Injury / First Aid
Antagonist
Muscle opposing the action of another muscle
Biomechanics / Strength & Conditioning
Anterior
Front of the body
Anatomy
Anterior cruciate ligament (ACL)
Ligament stabilizing the knee
Anatomy / Sport Injury
Antibody
Protein produced by immune system to neutralize antigens
Immunology / Biology
Antigen
Substance that triggers an immune response
Immunology / Biology
Antigen-presenting cell
Immune cell displaying antigen to T-cells
Immunology / Biology
Anxiety
Emotional state characterized by apprehension
Psychology / Sport Psychology
Anxiety disorder
Psychological condition with excessive anxiety
Psychology / Psychiatry
Aorta
Main artery carrying blood from the heart
Anatomy / Physiology
Aortic valve
Valve controlling blood flow from heart to aorta
Anatomy / Physiology
Apnea
Temporary cessation of breathing
Physiology / Exercise Testing
Aponeurosis
Flat tendon connecting muscle to bone
Anatomy / Biomechanics
Appendicular skeleton
Bones of the limbs and girdles
Anatomy
Appraisal
Cognitive evaluation of stressors
Psychology / Sport Psychology
Apraxia
Inability to perform motor tasks despite intact muscles
Neurology / Motor Behavior
Aquaporin
Protein channel facilitating water movement in cells
Physiology / Biochemistry
Aqueous humor
Fluid in the eye between cornea and lens
Anatomy / Physiology
Arrhythmia
Irregular heartbeat
ECG / Pathophysiology
Arteriole
Small branch of an artery
Anatomy / Physiology
Artery
Blood vessel carrying blood away from heart
Anatomy / Physiology
Arthritis
Inflammation of joints
Pathophysiology / Sport Injury
Articular cartilage
Smooth tissue covering bone ends in joints
Anatomy / Biomechanics
Articulation
Joint connecting bones
Anatomy / Biomechanics
Aspiration
Inhalation of foreign material into lungs
First Aid / Pathophysiology
Assessment
Evaluation of performance or condition
Exercise Testing / Psychology
Asthma
Chronic airway inflammation causing breathing difficulty
Pathophysiology / Physiology
Astigmatism
Eye defect causing blurred vision
Anatomy / Physiology
Atrophy
Decrease in size of tissue or muscle
Physiology / Strength & Conditioning
Attentional focus
Concentration on specific stimuli during performance
Sport Psychology / Psychology
Auditory cortex
Brain region processing sound
Anatomy / Psychology
Auditory nerve
Nerve transmitting sound signals to brain
Anatomy / Neuroscience
Autoclave
Device for sterilizing equipment using steam
Biology / First Aid
Autonomic nervous system
Part of nervous system controlling involuntary functions
Physiology / Anatomy
Autophagy
Cellular process of degrading damaged organelles
Biology / Physiology
Axial load
Force applied along the axis of a structure
Biomechanics / Physics
Axial rotation
Rotation around the long axis of a body segment
Biomechanics / Exercise Physiology
Axial skeleton
Bones of the head, neck, and trunk
Anatomy
Axis
Second cervical vertebra (C2)
Anatomy
Axon
Nerve fiber transmitting impulses from neuron
Anatomy / Neuroscience
Term
Definition
Associated Field
Blood pressure
Force exerted by blood on arterial walls
Physiology / Pathophysiology
Brain death
Irreversible cessation of brain activity
Pathophysiology / ACLS
Breath-holding test
Measure of respiratory capacity
Exercise Testing / Physiology
Brain injury
Damage to brain tissue
Pathophysiology / Sport Injury
Brain cortex
Outer layer of the brain
Anatomy / Neuroscience
Biodynamics
Study of forces in biological systems
Biomechanics / Physics
Botulinum toxin
Neurotoxin causing muscle paralysis
Pathophysiology / Pharmacology
Blood lipids
Fats present in the bloodstream
Nutrition / Physiology
Biceps femoris
Muscle of the posterior thigh
Anatomy / Biomechanics
Blood volume
Total amount of blood in body
Physiology / Pathophysiology
Buffers
Substances maintaining pH stability
Chemistry / Physiology
Blood pH
Measure of acidity/alkalinity in blood
Physiology / Pathophysiology
Bioinformatics
Application of computational tools to biology
Genetics / Biology
Blood alcohol concentration (BAC)
Measure of alcohol in bloodstream
Physiology / Pathophysiology
Bronchitis
Inflammation of the bronchi
Pathophysiology / Physiology
Body awareness
Conscious perception of body position
Motor Behavior / Psychology
Bulbourethral gland
Gland producing pre-ejaculate fluid
Anatomy / Physiology
Blood doping
Illegally increasing red blood cell count
Exercise Physiology / Ethics
Brain hemorrhage
Bleeding within the brain
Pathophysiology / First Aid
Bursitis
Inflammation of a bursa
Sport Injury / Pathophysiology
Bronchopneumonia
Infection of the bronchi and lungs
Pathophysiology / Medicine
Blood flow
Movement of blood through vessels
Physiology / Biomechanics
Bone mineral content
Amount of mineral in bones
Nutrition / Exercise Physiology
Body temperature
Measurement of internal heat
Physiology / Pathophysiology
Body temperature measurement
Assessment of internal body heat
Physiology / First Aid
Bronchoscopy
Procedure to view inside the airways
Medicine / First Aid
Breathing rate
Number of breaths per minute
Physiology / Exercise Physiology
Body temperature regulation
Physiological control of heat balance
Physiology / Exercise Physiology
Bradycardia-tachycardia syndrome
Alternating slow and fast heart rate
ECG / Pathophysiology
Body alignment
Correct posture of body segments
Biomechanics / Exercise Physiology
Body composition
Proportion of fat, muscle, and bone in body
Exercise Physiology / Nutrition
Bulging disk
Protrusion of intervertebral disc
Pathophysiology / Sport Injury
Biochemistry
Study of chemical processes in living organisms
Biochemistry / Biology
Body mechanics
Principles of movement to prevent injury
Biomechanics / Exercise Physiology
Buccinator
Muscle of the cheek
Anatomy / Biomechanics
Bradyapnea
Abnormally slow breathing
Physiology / Pathophysiology
Biopsy
Sample of tissue for diagnostic examination
Pathophysiology / Medicine
Bone age
Assessment of skeletal maturity
Medicine / Exercise Testing
Bone scan
Imaging test detecting bone abnormalities
Pathophysiology / Medicine
Bursae
Fluid-filled sacs reducing friction at joints
Anatomy / Biomechanics
Brain lateralization
Specialization of brain hemispheres
Neuroscience / Psychology
Bronchoconstriction
Narrowing of the airways
Physiology / Pathophysiology
Basophil
White blood cell involved in immune response
Biology / Immunology
Brain tumor grading
Classification of tumor severity
Pathophysiology / Medicine
Brainstem reflex
Automatic response mediated by brainstem
Neuroscience / Physiology
Body weight
Total mass of an individual
Nutrition / Exercise Physiology
Biomechanics
Study of movement mechanics in biological systems
Biomechanics / Exercise Physiology
Buffers system
Mechanism regulating pH in body fluids
Chemistry / Physiology
Brachial plexus
Network of nerves supplying upper limb
Anatomy / Neuroscience
Brain plasticity assessment
Measurement of brain adaptability
Neuroscience / Psychology
Brainstem
Region connecting brain to spinal cord
Anatomy / Neuroscience
Brain aneurysm
Abnormal dilation of brain blood vessel
Pathophysiology / Medicine
Brain wave
Electrical activity in the brain
Neuroscience / Psychology
Brain plasticity
Ability of brain to reorganize after injury
Neuroscience / Psychology
Bone tissue
Connective tissue forming bones
Anatomy / Physiology
Bone remodeling
Continuous replacement of bone tissue
Physiology / Exercise Physiology
Body fat percentage
Proportion of body mass composed of fat
Nutrition / Exercise Physiology
Bone marrow
Soft tissue inside bones producing blood cells
Anatomy / Physiology
Brain tumor
Abnormal growth of brain cells
Pathophysiology / Neuroscience
Biomechanical analysis
Study of movement forces on the body
Biomechanics / Motion Analysis
Balance
Ability to maintain body equilibrium
Biomechanics / Exercise Physiology
Biochemical marker
Substance indicating a biological process
Biochemistry / Pathophysiology
Buccal
Relating to the cheek
Anatomy / Physiology
Bronchi
Main air passages to lungs
Anatomy / Physiology
Bioavailability
Proportion of nutrient absorbed and utilized by body
Nutrition / Physiology
Brachial artery
Major artery of the upper arm
Anatomy / Physiology
Beta-oxidation
Fatty acid breakdown for energy
Biochemistry / Exercise Physiology
Bradykinesia
Slowness of movement
Neurology / Motor Behavior
Blood lactate
Lactic acid concentration in blood
Exercise Physiology / Biochemistry
Bradycardia
Slow heart rate
ECG / Physiology
Biosynthesis
Production of complex molecules from simpler ones
Biochemistry / Physiology
Bone spur
Bony growth on normal bone
Pathophysiology / Sport Injury
Bone fracture
Break in the bone structure
Sport Injury / First Aid
Blood sugar
Concentration of glucose in blood
Nutrition / Physiology
Bulimia nervosa
Eating disorder with binge-purge behavior
Psychology / Nutrition
Body mass index (BMI)
Ratio of weight to height squared
Nutrition / Exercise Physiology
Biceps brachii
Muscle of the upper arm responsible for elbow flexion
Anatomy / Biomechanics
B-vitamin
Group of water-soluble vitamins important for metabolism
Nutrition / Biochemistry
Bulimia
Eating disorder with binge and purge cycles
Psychology / Nutrition
Blood culture
Test to detect infection in blood
Pathophysiology / Medicine
Brain imaging
Techniques visualizing brain structure/function
Medicine / Neuroscience
Biostatistics
Application of statistics to biological data
Biology / Sociology
Blood donor
Person giving blood for transfusion
Medicine / First Aid
Beta-blocker
Medication reducing heart rate and blood pressure
Pharmacology / Physiology
Bone stress injury
Overuse injury causing bone microdamage
Sport Injury / Exercise Physiology
Bone scan imaging
Nuclear imaging to detect bone disorders
Pathophysiology / Medicine
Bronchopulmonary segment
Functional subdivision of the lung
Anatomy / Physiology
Blood transfusion
Transfer of blood into a patient
Medicine / First Aid
Blood gas
Measurement of oxygen and carbon dioxide in blood
Physiology / Pathophysiology
Basal metabolic rate (BMR)
Energy expenditure at rest
Nutrition / Physiology
Bone density
Mass of bone tissue per unit volume
Anatomy / Exercise Physiology
Bronchodilator therapy
Treatment widening the airways
Pathophysiology / Medicine
Bronchodilator
Medication that widens airways
Pharmacology / Physiology
Blood clot
Aggregation of blood components forming a mass
Pathophysiology / First Aid
Brain function
Activities of the brain, including cognition
Neuroscience / Psychology
Bone fracture healing
Biological process of bone repair
Physiology / Sport Injury
Blood pressure cuff
Device measuring blood pressure
Physiology / First Aid
Blood-brain barrier
Protective barrier separating blood from brain
Anatomy / Physiology
Biofeedback
Technique for controlling physiological functions
Psychology / Exercise Physiology
Blood glucose
Concentration of sugar in blood
Nutrition / Physiology
Bolus
Mass of food swallowed
Nutrition / Physiology
Term
Definition
Associated Field
Cytokine
Signaling molecule in immune system
Biology / Pathophysiology
Cardiac cycle
Sequence of heart contraction and relaxation
Physiology / Exercise Physiology
Cognitive function
Mental processes like memory and attention
Psychology / Sport Psychology
Contrast agent
Substance improving imaging visibility
Medicine / Pathophysiology
Cardiac stress test
Assessment of heart under stress
Exercise Testing / Physiology
Coagulation
Process of blood clotting
Physiology / Pathophysiology
Cori cycle
Metabolic pathway converting lactate to glucose
Biochemistry / Exercise Physiology
Cardiovascular disease
Diseases affecting heart and blood vessels
Pathophysiology / Medicine
Cortical bone
Dense outer layer of bone
Anatomy / Biomechanics
Control group
Group not receiving intervention in study
Sociology / Exercise Testing
Cortisol
Stress hormone released by adrenal gland
Physiology / Psychology
Cerebrospinal fluid
Fluid cushioning brain and spinal cord
Anatomy / Physiology
Cortex
Outer layer of organ (e.g., brain)
Anatomy / Neuroscience
Cell membrane
Semi-permeable outer layer of cell
Biology / Physiology
Cardiac rhythm
Pattern of heartbeats
ECG / Physiology
Cone cells
Retinal photoreceptors for color vision
Anatomy / Physiology
Capsule (joint)
Fibrous structure surrounding joint
Anatomy / Biomechanics
Chi-square test
Statistical test for categorical data
Sociology / Biostatistics
Cardiomyocyte
Heart muscle cell
Anatomy / Physiology
Cervical spine
Neck portion of the vertebral column
Anatomy / Biomechanics
Catabolism
Breakdown of complex molecules
Biochemistry / Physiology
Cervical vertebrae
Vertebrae of the neck
Anatomy / Biomechanics
Cerebral hemisphere
One half of the cerebrum
Anatomy / Neuroscience
Chest wall
Muscles and bones surrounding thorax
Anatomy / Biomechanics
Calf muscle
Muscle group at back of lower leg
Anatomy / Biomechanics
Compartment syndrome
Increased pressure within muscle compartment
Sport Injury / First Aid
Chronic disease
Long-lasting health condition
Pathophysiology / Medicine
Caloric expenditure
Energy used by body for activity
Exercise Physiology / Nutrition
Cardiorespiratory system
Heart and lungs functioning together
Anatomy / Physiology
Capillary
Smallest blood vessel
Anatomy / Physiology
Curare
Muscle relaxant toxin
Pharmacology / Physiology
Circulatory system
Heart and vessels transporting blood
Anatomy / Physiology
Cognitive load
Mental effort required for a task
Psychology / Motor Behavior
Creatine phosphate
Energy storage molecule in muscles
Exercise Physiology / Biochemistry
Creatinine
Waste product of muscle metabolism
Physiology / Pathophysiology
Chest compression
Component of CPR
ACLS / First Aid
Cytoplasm
Material inside cell excluding nucleus
Biology / Physiology
Calcaneus
Heel bone of the foot
Anatomy / Biomechanics
Constipation
Difficulty in bowel movements
Pathophysiology / Nutrition
Connective tissue
Tissue supporting and connecting body parts
Anatomy / Biomechanics
Crepitus
Crackling sound in joints or lungs
Pathophysiology / Sport Injury
Cardiopulmonary resuscitation (CPR)
Emergency procedure for cardiac arrest
ACLS / First Aid
Cubital tunnel syndrome
Compression of ulnar nerve at elbow
Pathophysiology / Sport Injury
Coordination
Ability to execute smooth, controlled movements
Motor Behavior / Exercise Physiology
Convection
Heat transfer via fluid motion
Physics / Exercise Physiology
Colostomy
Surgical opening of colon
Medicine / Pathophysiology
Concentric contraction
Muscle shortening during contraction
Exercise Physiology / Strength and Conditioning
Cardiac rehabilitation
Program to restore heart health
Exercise Physiology / Medicine
Circumduction
Circular movement of a limb
Biomechanics / Exercise Physiology
Compensation (exercise)
Adjustments in movement to maintain performance
Biomechanics / Exercise Physiology
Cardiovascular response
Heart and vessel adaptation to stress
Exercise Physiology / Physiology
Cellular respiration
Process of converting glucose to energy
Biochemistry / Physiology
Calcification
Deposition of calcium in tissue
Pathophysiology / Physiology
Cardiorespiratory fitness
Ability of heart and lungs to supply oxygen
Exercise Physiology / Strength and Conditioning
Confounding variable
Factor affecting study results
Sociology / Psychology
Carbohydrate
Macronutrient providing energy
Nutrition / Biochemistry
Chondrocyte
Cell forming cartilage
Anatomy / Physiology
Circadian rhythm
Biological cycle of ~24 hours
Physiology / Psychology
Cartilage
Flexible connective tissue at joints
Anatomy / Biomechanics
Compliance (respiratory)
Lung expandability
Physiology / Exercise Physiology
Child development
Physical and cognitive growth in children
Motor Behavior / Psychology
Coenzyme
Molecule assisting enzyme activity
Biochemistry / Physiology
Cardiovascular system
Heart and blood vessels
Anatomy / Physiology
Cytotoxic
Cell-damaging or killing
Pathophysiology / Biology
Colon
Part of large intestine
Anatomy / Physiology
Cerebellum
Brain region coordinating movement
Anatomy / Neuroscience
Central nervous system (CNS)
Brain and spinal cord
Anatomy / Neuroscience
Consciousness
Awareness of self and environment
Neuroscience / Psychology
Capillary refill
Time for color to return to nail bed
First Aid / Physiology
Carpal tunnel syndrome
Compression of median nerve at wrist
Pathophysiology / Sport Injury
Chemotaxis
Movement of cells toward chemical stimulus
Biology / Physiology
Caloric intake
Total energy consumed from food
Nutrition / Exercise Physiology
Cardiac output
Volume of blood pumped per minute
Physiology / Exercise Physiology
Cross-bridge
Interaction between actin and myosin in muscle contraction
Exercise Physiology / Biochemistry
Colles fracture
Fracture of distal radius
Sport Injury / Pathophysiology
Cutaneous sensation
Skin-based sensory perception
Physiology / Motor Behavior
Coma
State of prolonged unconsciousness
Pathophysiology / Neuroscience
Cross-sectional study
Observational study at a single time point
Sociology / Exercise Testing
Collagen
Protein forming connective tissue
Anatomy / Biochemistry
Carbohydrate metabolism
Conversion of carbs to energy
Physiology / Biochemistry
Cognitive therapy
Psychological treatment targeting thoughts
Psychology / Sport Psychology
Cardiomegaly
Enlargement of the heart
Pathophysiology / Medicine
Cytoskeleton
Network of fibers supporting cell structure
Biology / Biomechanics
Cryotherapy
Cold therapy for injury treatment
Sport Injury / Exercise Physiology
Cell cycle
Series of phases a cell goes through
Biology / Genetics
Clinical nutrition
Use of nutrition in treatment
Nutrition / Medicine
Cardiac arrest
Sudden cessation of heart function
ACLS / First Aid
Clinical assessment
Evaluation of patient condition
Medicine / Exercise Testing
Cell
Basic unit of life
Biology / Anatomy
Chemoreceptor
Sensor detecting chemical changes
Physiology / Biology
Cardiomyopathy
Disease of heart muscle
Pathophysiology / Medicine
Clavicle
Collarbone connecting arm to trunk
Anatomy / Biomechanics
Carpal bones
Bones of the wrist
Anatomy / Biomechanics
Chronic obstructive pulmonary disease (COPD)
Progressive lung disease
Pathophysiology / Medicine
Continuous passive motion (CPM)
Device moving joint after surgery
Exercise Physiology / Biomechanics
Cell differentiation
Process by which cells become specialized
Biology / Genetics
Cardiovascular endurance
Ability to sustain aerobic activity
Exercise Physiology / Strength and Conditioning
Catecholamine
Hormones like adrenaline
Physiology / Biochemistry
Cerebral cortex
Outer layer of brain involved in cognition
Neuroscience / Psychology
Cataract
Clouding of the eye lens
Pathophysiology / Medicine
Term
Definition
Associated Field
DNA (Deoxyribonucleic acid)
Molecule carrying genetic information
Genetics / Biology
DNA damage
Alteration in DNA structure
Genetics / Pathophysiology
DNA repair
Mechanisms fixing DNA damage
Genetics / Biochemistry
DNA replication
Process of copying DNA
Genetics / Biology
Dendrite
Branch of neuron receiving signals
Neuroscience / Biology
Denervation
Loss of nerve supply to tissue
Neuroscience / Pathophysiology
Dependent variable
Outcome measured in an experiment
Sociology / Psychology
Depolarization
Reduction of electrical charge across cell membrane
Physiology / ECG
Depolarization wave
Electrical impulse in muscle or heart
ECG / Physiology
Depression
Mood disorder with persistent sadness
Psychology / Sport Psychology
Dermatology
Study of skin and its diseases
Medicine / Pathophysiology
Dermatome
Skin area supplied by a single spinal nerve
Anatomy / Neuroscience
Dermis
Middle layer of skin
Anatomy / Physiology
Desaturation
Decrease in oxygen saturation
Pathophysiology / Exercise Physiology
Desmosome
Cell structure for adhesion
Biology / Anatomy
Detection threshold
Minimum stimulus intensity sensed
Psychology / Physiology
Determinant of health
Factor influencing health outcomes
Sociology / Public Health
Determinism
Belief that behavior is determined by causes
Psychology / Sociology
Detoxification
Removal of toxins from body
Physiology / Nutrition
Developmental milestone
Age-specific achievement in growth
Motor Behavior / Psychology
Deviated septum
Displacement of nasal septum
Anatomy / Pathophysiology
Diabetes mellitus
Metabolic disorder with high blood sugar
Pathophysiology / Nutrition
Diabetic foot
Foot complication due to diabetes
Pathophysiology / Medicine
Diabetic ketoacidosis
Dangerous complication of diabetes
Pathophysiology / Medicine
Diabetic neuropathy
Nerve damage due to diabetes
Pathophysiology / Medicine
Diabetic retinopathy
Eye damage caused by diabetes
Pathophysiology / Medicine
Diagnostic test
Procedure to identify disease
Medicine / Pathophysiology
Diaphragm
Primary muscle for respiration
Anatomy / Physiology
Diaphragmatic breathing
Deep breathing using diaphragm
Exercise Physiology / Psychology
Diastasis recti
Separation of abdominal muscles
Physiology / Exercise Physiology
Diastole
Phase of heart relaxation
Physiology / Cardiology
Diastolic blood pressure
Pressure during heart relaxation
Physiology / Cardiology
Diencephalon
Region of brain including thalamus and hypothalamus
Anatomy / Neuroscience
Diffuse injury
Widespread tissue damage
Pathophysiology / Sport Injury
Diffusion
Movement of molecules from high to low concentration
Biology / Chemistry / Physiology
Diffusion gradient
Difference driving diffusion
Physiology / Chemistry
Digestion
Breakdown of food into absorbable components
Physiology / Nutrition
Digestive enzyme
Substance breaking down food
Nutrition / Biochemistry
Digestive system
Organs involved in food processing
Anatomy / Physiology
Digital rectal exam
Clinical exam of rectum
Medicine / First Aid
Digital sensor
Device converting physiological signal to digital
Biomechanics / Motion Analysis
Digitalis
Heart medication from plant source
Pharmacology / Physiology
Dilation
Widening of vessel or organ
Physiology / Pathophysiology
Dimorphism
Existence of two distinct forms in a species
Biology / Genetics
Dislocation
Joint displacement from normal position
Sport Injury / First Aid
Disorientation
Confusion regarding time, place, or person
Psychology / Neurology
Distal
Farther from point of attachment
Anatomy / Biomechanics
Distal phalanx
Bone at tip of fingers or toes
Anatomy / Biomechanics
Disuse atrophy
Muscle wasting from inactivity
Exercise Physiology / Pathophysiology
Diuretic
Substance promoting urine production
Pharmacology / Physiology
Diurnal rhythm
Same as circadian rhythm; daily biological pattern
Physiology / Psychology
Diurnal variation
Fluctuation of biological processes over day
Physiology / Psychology
Dominance (genetics)
Expression of one allele over another
Genetics / Biology
Dominant gene
Gene that expresses its trait over another
Genetics / Biology
Dopamine
Neurotransmitter regulating movement and mood
Neuroscience / Psychology
Doppler effect
Change in frequency of waves relative to motion
Physics / Biomechanics
Dorsal
Relating to the back side of the body
Anatomy / Biomechanics
Dorsal column
Part of spinal cord carrying sensory info
Neuroscience / Anatomy
Dorsal flexion
Same as dorsiflexion; upward foot movement
Biomechanics / Exercise Physiology
Dorsal root
Sensory nerve root of spinal cord
Anatomy / Neuroscience
Dorsal root ganglion
Cluster of sensory neuron cell bodies
Anatomy / Neuroscience
Dorsalis pedis artery
Artery on dorsal foot
Anatomy / Physiology
Dorsiflexion
Upward movement of foot at ankle
Biomechanics / Exercise Physiology
Dose-response
Effect of dose on outcome
Pharmacology / Physiology
Dosing
Administration of medication amount
Pharmacology / Medicine
Double-blind study
Research design reducing bias
Sociology / Psychology
Double-support phase
Phase in gait when both feet are on ground
Biomechanics / Motion Analysis
Down syndrome
Genetic disorder from trisomy 21
Genetics / Pathophysiology
Downhill running
Running on decline slope
Exercise Physiology / Biomechanics
Downward phase
Eccentric portion of exercise
Exercise Physiology / Strength and Conditioning
Drag force
Resistance force opposing motion through fluid
Physics / Biomechanics
Drape test
Movement analysis using marker drapes
Motion Analysis / Biomechanics
Duct
Tube conveying fluids in the body
Anatomy / Physiology
Ductus arteriosus
Fetal blood vessel connecting pulmonary artery and aorta
Anatomy / Physiology
Ductus venosus
Fetal vessel shunting blood past liver
Anatomy / Physiology
Dumping syndrome
Rapid gastric emptying causing symptoms
Pathophysiology / Nutrition
Duodenum
First part of the small intestine
Anatomy / Physiology
Dynamic contraction
Muscle contraction with movement
Exercise Physiology / Strength and Conditioning
Dynamic equilibrium
Balance maintained during motion
Biomechanics / Exercise Physiology
Dynamic stretching
Stretching performed with movement
Exercise Physiology / Strength and Conditioning
Dysarthria
Difficulty speaking due to muscle impairment
Neurology / Psychology
Dysautonomia
Dysfunction of autonomic nervous system
Pathophysiology / Neuroscience
Dyscalculia
Difficulty with arithmetic
Psychology / Education
Dysgeometria
Impaired perception of distances
Neurology / Psychology
Dysgeusia
Altered taste perception
Pathophysiology / Nutrition
Dyskinesia
Abnormal or impaired movement
Motor Behavior / Pathophysiology
Dyskinesia assessment
Evaluation of abnormal movements
Motor Behavior / Exercise Testing
Dyslexia
Learning disorder affecting reading
Psychology / Education
Dysmenorrhea
Painful menstruation
Pathophysiology / Physiology
Dyspnea
Shortness of breath
Pathophysiology / First Aid
Dyspnea scale
Tool to measure shortness of breath
Exercise Testing / Physiology
Dyspraxia
Difficulty in motor planning
Motor Behavior / Psychology
Dyssynchrony
Uncoordinated muscular or cardiac activity
Physiology / Exercise Testing
Dysthymia
Chronic mild depression
Psychology / Sport Psychology
Dystonia
Involuntary muscle contractions
Neurology / Motor Behavior
Dystrophy
Degeneration of tissue or organ
Pathophysiology / Medicine
Dysuria
Painful urination
Pathophysiology / Medicine
Term
Definition
Associated Field
ECG (Electrocardiogram)
Recording of heart's electrical activity
ECG / Cardiology
EEG (Electroencephalogram)
Recording of brain electrical activity
Neuroscience / Physiology
Ectopic beat
Abnormal heart beat originating outside normal conduction
ECG / Pathophysiology
Ectopic pregnancy
Implantation of embryo outside uterus
Pathophysiology / Medicine
Edema
Swelling due to fluid accumulation
Pathophysiology / First Aid
Ejection fraction
Percentage of blood pumped from heart
Physiology / Cardiology
Elasticity
Ability of tissue to return to original shape
Biomechanics / Exercise Physiology
Electrocardiographic lead
Electrode position for ECG recording
ECG / Cardiology
Electrocution
Injury from electric shock
First Aid / Pathophysiology
Electrolysis
Chemical decomposition using electricity
Chemistry / Biochemistry
Electrolyte
Mineral that conducts electricity in body fluids
Nutrition / Physiology
Electromagnetic radiation
Energy waves emitted by charged particles
Physics / Biophysics
Electromyography (EMG)
Recording of muscle electrical activity
Biomechanics / Exercise Testing
Electron
Subatomic particle with negative charge
Chemistry / Physics
Electron microscopy
Imaging technique using electrons
Biology / Biophysics
Electron transport chain
Series of protein complexes producing ATP
Biochemistry / Physiology
Electroplax
Specialized muscle for electrical discharge in some animals
Physiology / Biochemistry
Electroporation
Increasing cell membrane permeability using electricity
Biology / Biochemistry
Electrotherapy
Use of electrical stimulation for therapy
Exercise Physiology / Medicine
Element
Substance consisting of one type of atom
Chemistry / Biology
Elevation (shoulder)
Lifting arm upwards
Biomechanics / Exercise Physiology
Elimination (exercise)
Removing fatigue or waste products from muscle
Exercise Physiology / Strength and Conditioning
Elongation
Lengthening of tissue or muscle
Biomechanics / Exercise Physiology
Embolic stroke
Stroke caused by obstruction of cerebral blood vessel
Pathophysiology / Medicine
Embolism
Obstruction of blood vessel by clot or air
Pathophysiology / Medicine
Embryo
Early stage of development after fertilization
Biology / Anatomy
Emergency care
Immediate medical care for injury or illness
First Aid / ACLS
Emesis
Vomiting
Pathophysiology / First Aid
Emotional intelligence
Ability to recognize and manage emotions
Psychology / Sport Psychology
Empathy
Ability to understand others' emotions
Psychology / Sport Psychology
Empirical evidence
Knowledge gained through observation or experiment
Sociology / Psychology
En bloc resection
Surgical removal of tissue in one piece
Medicine / Pathophysiology
Endocardium
Inner lining of heart chambers
Anatomy / Physiology
Endocrine hormone
Chemical messenger released into blood
Physiology / Biochemistry
Endocrine system
Glands secreting hormones into blood
Anatomy / Physiology
Endocrinology
Study of hormones and glands
Medicine / Physiology
Endocytosis
Process of cells engulfing substances
Biology / Physiology
Endogenous
Produced within the body
Physiology / Biochemistry
Endorphin
Natural pain-relieving neuropeptide
Physiology / Psychology
Endorphin release
Production of pain-relieving neuropeptides
Physiology / Psychology
Endothelium
Inner lining of blood vessels
Anatomy / Physiology
Endotracheal tube
Tube inserted into trachea for ventilation
Medicine / ACLS
Endplate
Junction between nerve and muscle
Anatomy / Physiology
Endurance
Ability to sustain physical effort
Exercise Physiology / Strength and Conditioning
Endurance training
Exercise to improve stamina
Exercise Physiology / Strength and Conditioning
Energy expenditure
Total energy used by body
Exercise Physiology / Nutrition
Energy metabolism
Process of producing energy from nutrients
Physiology / Biochemistry
Enkephalin
Peptide acting as neurotransmitter for pain relief
Neuroscience / Physiology
Entrainment
Synchronization of biological rhythms
Physiology / Psychology
Environmental stress
External factors affecting performance or health
Exercise Physiology / Psychology
Enzyme
Protein catalyzing biochemical reactions
Biochemistry / Physiology
Enzyme inhibition
Process reducing enzyme activity
Biochemistry / Pharmacology
Enzyme kinetics
Study of enzyme reaction rates
Biochemistry / Chemistry
Eosinophil
Type of white blood cell
Anatomy / Pathophysiology
Epicondyle
Bony prominence near joint
Anatomy / Biomechanics
Epidermis
Outermost skin layer
Anatomy / Physiology
Epidural
Injection or block in spine
Medicine / Pathophysiology
Epigenetics
Study of heritable changes not in DNA sequence
Genetics / Biology
Epigenome
Chemical modifications regulating gene expression
Genetics / Biology
Epilepsy
Neurological disorder causing seizures
Neurology / Pathophysiology
Epinephrine
Hormone and neurotransmitter (adrenaline)
Physiology / Pharmacology
Epiphyseal plate
Growth plate in long bones
Anatomy / Physiology
Epiphysis
End part of long bone
Anatomy / Biomechanics
Epiphysis fracture
Fracture at end of long bone
Sport Injury / Pathophysiology
Epistasis
Interaction between genes affecting traits
Genetics / Biology
Epistaxis
Nosebleed
First Aid / Medicine
Equilibrium
State of balance
Biomechanics / Exercise Physiology
Ergogenic aid
Substance or technique enhancing performance
Exercise Physiology / Nutrition
Ergometry
Measurement of work output
Exercise Testing / Exercise Physiology
Erythema
Redness of skin
Pathophysiology / First Aid
Erythrocyte
Red blood cell
Anatomy / Physiology
Erythropoiesis
Production of red blood cells
Physiology / Hematology
Escalator test
Exercise test simulating stair climbing
Exercise Testing / Exercise Physiology
Esophageal varices
Swollen veins in esophagus
Pathophysiology / Medicine
Essential amino acid
Amino acid the body cannot synthesize
Nutrition / Biochemistry
Estrogen
Female sex hormone
Physiology / Endocrinology
Ethanol
Alcohol molecule
Biochemistry / Pharmacology
Ethology
Study of animal behavior
Psychology / Biology
Etiology
Study of disease causes
Pathophysiology / Medicine
Eustachian tube
Canal connecting middle ear to pharynx
Anatomy / Physiology
Eustress
Positive stress promoting performance
Psychology / Sport Psychology
Evaluation (exercise)
Assessment of performance or fitness
Exercise Testing / Strength and Conditioning
Evoked potential
Measured brain response to stimulus
Neuroscience / Physiology
Excretion
Removal of waste from body
Physiology / Anatomy
Exercise
Physical activity to improve health
Exercise Physiology / Strength and Conditioning
Exercise adherence
Commitment to regular exercise
Psychology / Exercise Physiology
Exercise capacity
Maximum physical output achievable
Exercise Physiology / Exercise Testing
Exercise intensity
Level of effort during activity
Exercise Physiology / Strength and Conditioning
Exercise prescription
Plan of exercise for health or performance
Exercise Physiology / Strength and Conditioning
Exercise recovery
Period after activity for rest and adaptation
Exercise Physiology / Nutrition
Exercise tolerance
Ability to perform physical activity without excessive fatigue
Exercise Physiology / Exercise Testing
Exhalation
Breathing out
Physiology / Anatomy
Exophthalmos
Protrusion of the eyeball
Pathophysiology / Medicine
Expansion (lungs)
Increase in lung volume during inspiration
Physiology / Exercise Physiology
Expectancy theory
Motivation depends on expected outcome
Psychology / Sport Psychology
Exposure therapy
Treatment exposing patients to anxiety triggers
Psychology / Sport Psychology
External rotation
Rotation away from body midline
Biomechanics / Exercise Physiology
Extracellular fluid
Fluid outside cells
Physiology / Anatomy
Extracorporeal circulation
Blood circulation outside body (e.g., heart-lung machine)
Medicine / Physiology
Extrinsic motivation
Motivation from external rewards
Psychology / Sport Psychology
Extrinsic muscles
Muscles originating outside the region they move
Anatomy / Biomechanics
Eye-tracking
Measuring eye movement to study attention
Psychology / Motion Analysis
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