Question

question 12 (2.5 points)
the hormone that plays an important role in the maintenance of body temperature is
______.

○ glucagon
○ thyroxine
○ somatotropin
○ parathyroid hormone

question 13 (2.5 points)
the alpha cells of the pancreas produce ______.

○ renin
○ cortisol
○ glucagon
○ insulin

question 14 (2.5 points)
myxedema is due to impairment of the ______.

○ posterior lobe of the pituitary
○ anterior lobe of the pituitary
○ thyroid gland

Explanation:

Question 12

Glucagon regulates blood glucose. Somatotropin is growth hormone. Parathyroid hormone regulates calcium. Thyroxine (from thyroid) increases metabolic rate, generating heat to maintain body temperature.

Renin is from kidneys, cortisol from adrenal cortex, insulin from pancreatic beta cells. Alpha cells of pancreas produce glucagon (raises blood glucose).

Myxedema is hypothyroidism in adults, caused by thyroid gland impairment (insufficient thyroxine). Pituitary lobes issues cause different conditions (e.g., hypopituitarism), not myxedema.

Answer:

B. thyroxine

Question 13