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ATI RN · ATI Medical Surgical · Multiple Choice Questions on Endocrine System

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which of the following hormones are produced and secreted by the adrenal medulla?

A. T4 (thyroxine) and T3 (triiodothyronine)

B. adrenaline and noradrenaline

C. insulin and glucagon

D. aldosterone and cortisol

Correct Answer: adrenaline and noradrenaline

Question 2 of 5

The hormone involved in rhythmic activities, such as day/night and seasonal changes, is .

A. calcitonin

B. melatonin

C. estrogen

D. cyclin

Correct Answer: melatonin

Question 3 of 5

Monoamine oxidase enzyme (MAO) is responsible for:

A. Adrenaline activation

B. Adrenaline synthesis

C. Adrenaline degradation

D. Acetylcholine degradation

Correct Answer: Adrenaline degradation

Question 4 of 5

Estrogens and progesterone are produced by:

A. the testes.

B. the ovaries.

C. the adrenal glands.

D. the hypothalamus.

Correct Answer: the ovaries.

Question 5 of 5

Calcium level in the blood is regulated by the:

A. Parathyroid and thyroid

B. Adrenal medulla and pancreas

C. Testes

D. Parathyroid and thymus

Correct Answer: Parathyroid and thyroid

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