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7 Cards in this Set
- Front
- Back
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Autonomic nervous system (ANS) |
Potion of the nervous system that relates involuntary actions, such as heart rate, digestion, and peristalsis |
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Leaflet |
Flat, leaf shaped structure that comprises the valves of the heart and prevents back flow of blood |
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Lumen |
Tubular space or channel writing an organ or structure of the body; space within an artery, vein, intestine, or tube |
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Regurgitation |
Back flow or ejecting of contents through an opening |
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Sphincter |
Circular muscle found in a tubular structure or hollow organ that constricts or dialates to regulate passage of substances through its opening |
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Vasoconstriction |
Narrowing of the lumen of a blood vessel that limits blood flow, usually as a result of diseases, medications, or pysiological process |
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Viscosity |
State of being sticky or gummy |
