KROK 1 2018 – Question 63 · KROK (Medicine) · Physiology

A test animal receives electrical impulses that irritate the sympathetic nerve that innervates blood vessels of the skin. What reaction will it cause in the blood vessels?

  1. A. Arterial and venous constriction
  2. B. No reaction
  3. C. Arterial dilation
  4. D. Arterial and venous dilation
  5. E. Venous dilation
Hint

Ask what the sympathetic transmitter does to smooth muscle in skin vessels, and whether resistance and capacitance vessels respond alike.

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