Activation of the sympathetic nervous system
A) causes skin to perspire and accelerates heart rate.
B) causes skin to perspire and slows heart rate.
C) dries skin and slows heart rate.
D) dries skin and accelerates heart rate.

Question

Quizplus · Accepted Answer

Activation of the sympathetic nervous system is commonly known as the "fight or flight" response. It leads to increased heart rate and dilation of blood vessels, which causes skin to perspire. This is an adaptive response to prepare the body for physical action. Therefore, the best choice is A, which states that activation of the sympathetic nervous system causes skin to perspire and accelerates heart rate. Choices B, C, and D are incorrect as they state opposite or incorrect effects of sympathetic activation.

Activation of the Sympathetic Nervous System