36. The lumen of blood vessel is lined by a single layer of __cells. a.smooth mu

Question

36. The lumen of blood vessel is lined by a single layer of __cells.
a.smooth muscle
b.endothelial cells
c.erythrocytes
d.none ofthe above

37. The driving force for pulmonary circulation is generated by the contraction of
a.right atrium
b.left atrium
c.left ventricle
d.right ventricle

38. The amount of blood circulating in the systemic circulation is ___ pulmonary circulation.
a. the same as
b.five times greater than
c.two times greater than
d.less than

39. Which ofthe following blood vessels has the highest blood pressure?
a.capillary
b.vein
c.arteriole
d.artery

40. In response to high tissue carbon dioxide, the tissue blood vessel
a.constricts
b.dilates
c.neither a nor b
d.either a or b depending on tissue activity

Explanation / Answer

36. The lumen of blood vessel is lined by a single layer of __cells. B 37. The driving force for pulmonary circulation is generated by the contraction of D 38. The amount of blood circulating in the systemic circulation is ___ pulmonary circulation. B 39. Which ofthe following blood vessels has the highest blood pressure? D 40. In response to high tissue carbon dioxide, the tissue blood vessel A

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