Which of the following correctly matches a system with its contribution to the stress response?
A. Somatic nervous system; increases muscle tension.
B. Autonomic nervous system; increases blood flow to the skin, kidneys, and digestive tract.
C. Neuroendocrine system; stimulates release of epinephrine from the adrenal glands.
D. Both A and C
E. All of the above
ANS: D
Rationale: In the stress response the somatic nervous system increases muscle tension, the autonomic nervous system increases blood flow to the muscles while reducing blood flow to the skin, kidneys, and digestive tract, and the neuroendocrine system stimulates the adrenal glands to release epinephrine into the bloodstream. These responses increase cardiac rate and contraction strength, relax intestinal smooth muscle, and increase metabolic rate.
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