the hormonal products of the adrenal medullaffect all of the following except?

Question

a) accelerate heartbeat
b) stimulate synthesis of glycogen
c) increase blood pressure
d)reduce blood flow to the skin and digestive organs
e) increase blood sugar

Answer 1

(d)reduce blood flow to the skin and digestive organs

Reason: The hormones of the adrenal medulla are epinephrine and nor eoinephrine, which are responsible for inducing the the 3-F phenomenon (Flight, fright, fight). When their production is enhanced, they cause the acceleration of heartbeat, thereby increasing the blood pressure. Epinephrine binds to the cell surface receptors and can enhance blood sugar levels, and can also stimulate glycogen synthesis. Since it causes hyperactivity, it tends to cause constriction arterioles in the skin and gut (digestive organs) while dilating arterioles in leg muscles.

Answer 2

The adrenal medulla produces epinephrine, the hormone involved in the flight or fight reaction. It has effects throughout the body, including increasing heart rate, increasing strength of contraction (thus, higher blood pressure), reducing blood flow to the gut, but increasing it to the skeletal muscle, and increasing blood sugar. It does NOT stimulate the synthesis of glycogen. Glycogen is the storage form of the sugar glucose in muscle, and during the flight or fight response, more sugar is likely to be used than stored.

Answer 3

E). Glucagon is the hormone that turns glygogen stored in the Liver into glucose. When more glucose is produced, blood sugar increases. Glucagon is produced by the pancreas, not the adrenal medulla.