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Physiology 2

Physiology

TermDefinition
ACTION POTENTIAL A rapid change in membrane potential allowing nerve impulses to travel along neurons
SYNAPSE A small gap between neurons where nerve signals are transmitted chemically or electrically
NEUROTRANSMITTER A chemical messenger released at synapses to communicate signals between neurons
HORMONE A chemical substance secreted by endocrine glands that travels through the blood to affect target organs
ERYTHROCYTE A red blood cell tasked with transporting oxygen and carbon dioxide in the bloodstream
CARDIAC OUTPUT The volume of blood the heart pumps per minute; calculated as heart rate multiplied by stroke volume
CAPILLARY EXCHANGE The movement of substances between blood and tissues through the thin walls of capillaries
ADAPTIVE IMMUNITY The body’s tailored immune response involving specific recognition and memory of pathogens
ALVEOLUS A tiny air sac in the lungs where gas exchange (oxygen and carbon dioxide) takes place
PERISTALSIS A series of wave-like muscle contractions that moves food through the digestive tract
Created by: gnagle
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