A person is confronted by a dangerous dog.His heart begins to race and beat strongly,his pupils dilate,and his hairs stand up.These signs are not the result of
A)sympathetic activation.
B)increased levels of epinephrine in the blood.
C)increased activity of autonomic centers in the hypothalamus.
D)stimulation of the cardioacceleratory reflex.
E)stimulation of the pancreas to release insulin.

Question

Quizplus · Accepted Answer

The symptoms described (increased heart rate, dilated pupils, and hair standing up) are typical responses to stress or danger, mediated by the sympathetic nervous system and the release of epinephrine (adrenaline) from the adrenal glands. These responses are not directly related to the pancreas or its release of insulin, which is primarily involved in the regulation of blood glucose levels.

A Person Is Confronted by a Dangerous Dog