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5 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The circulatory system has __________ types of blood vessels.
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(a) one
(b) two (c) three (d) four |
(c) three
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__________ are small arteries just visible to the naked eye.
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(a) Venules
(b) Capillaries (c) Veins (d) Arterioles |
(d) Arterioles
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What structure within a capillary bed shunts blood from arteriole to venule?
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(a) precapillary valve
(b) endothelium (c) precapillary sphincter (d) pericardium (e) shunt valve |
(c) precapillary sphincter
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What is the function of valves in veins?
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(a) increase the rate of blood flow
(b) prevent the backward flow of blood (c) regulation of blood pressure (d) none of the above |
(b) prevent the backward flow of blood pressure
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The _______ can act as a blood reservoir.
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(a) veins
(b) lungs (c) heart (d) capillaries |
(a) veins
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