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11 Cards in this Set
- Front
- Back
autonomic nervous system (ANS):
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Portion of the nervous system that regulates involuntary actions, such as heart rate, digestion, and peristalsis. |
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leaflet:
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Flat, leaf-shaped structure that comprises the valves of the heart and prevents backflow of blood. |
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lumen: |
Tubular space or channel within an organ or structure of the body; space within an artery, vein, intestine, or tube. |
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regurgitation:
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backflow 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 dilates to regulate passage of substances through its opening. |
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vasoconstriction:
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narrowing of the lumen of a blood vessel that limits blood flow, usually as result of diseases, or physiological processes. |
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vasodilation:
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widening of the lumen of a blood vessel caused by the relaxing of the muscles of the vascular walls.
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viscosity:
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state of being sticky or gummy. |
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aneurysmorrhaphy:
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aneurysm/o: widened blood vessel. -rrhaphy: suture. |
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angioplasty:
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angi/o: vessel (usually blood or lymph). -rrhapyy: suture. |
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