Term
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Definition
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Term
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Definition
| carry blood away from the heart |
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Term
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Definition
| carry blood toward the heart |
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Term
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Definition
contact tissue cells
*Exchange occurs across the walls
*Capillaries are the smallest blood vessels
*Walls one cell thick
Allow only a single RBC to pass at a time |
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Term
| Tunica intima (tunica interna) |
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Definition
| Endothelial layer that is a smooth, modified epithelium |
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Term
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Definition
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Term
| Tunica adventitia (tunica externa) |
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Definition
| Collagen fibers that protect and reinforce vessels |
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Term
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Definition
| Tubes of endothelium on delicate basement membrane |
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Term
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Definition
| Blood pools rather than moving towards the heart – leaky valves (Hemorrhoids) |
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Term
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Definition
| Degenerative changes in arteries making them less elastic |
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Term
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Definition
| Deposition of fat and lipid on walls (MI) |
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Term
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Definition
| Mechanical opening of clogged artery |
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Term
| Blood Flow Through Capillary Beds |
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Definition
| Blood flow is regulated by nerves and local chemical conditions |
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Term
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Definition
| A microcirculation of interwoven networks of capillaries |
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Term
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Definition
| Transport blood through body from left ventricle and back to right atrium |
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Term
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Definition
| Transport blood from right ventricle through lungs and back to left atrium |
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Term
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Definition
All arteries are derived either directly or indirectly
Parts |
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Term
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Definition
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Term
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Definition
Force per unit area exerted on the wall of a blood vessel by blood
*millimeters of mercury (mm Hg) |
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Term
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Definition
| – pressure during ventricular contraction |
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Term
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Definition
| lowest level of arterial pressure during ventricular relaxation |
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