1) The primary purpose of extrinsic (central) regulation of arteriolar smooth mu

Question

1) The primary purpose of extrinsic (central) regulation of arteriolar smooth muscle is to

(a) regulate mean arterial pressure.

(b) regulate blood flow through specific capillary beds.

(c) regulate stroke volume.

(d) regulate heart rate

(e) regulate cardiac output.

2) Which of the following factors does NOT increase peripheral vascular resistance?

(a) increased blood viscosity

(b) increased blood cell count

(c) decreased vessel lumen diameter

(d) decreased vessel length

(e) increased vasoconstriction

Explanation / Answer

1. (a) regulate mean arterial pressure.

2. (d) decreased vessel length

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