Question

question 56 (0.5 points)
plasma glucose concentration drops during fasting. which pancreatic response would restore homeostasis?

• increased glucagon secretion
• decreased acth secretion
• increased insulin secretion
• increased tsh secretion

Explanation:

To restore plasma glucose during fasting, we analyze the options:

• Glucagon (from pancreas) raises blood glucose by breaking down glycogen. When glucose drops, the pancreas secretes more glucagon.
• ACTH (from pituitary) affects cortisol, not direct glucose regulation.
• Insulin lowers blood glucose (opposite of what’s needed during fasting).
• TSH (from pituitary) regulates thyroid, not glucose.

Thus, increased glucagon secretion is the correct response.

Answer:

A. Increased glucagon secretion