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ATI LPN · Anatomy and Physiology · Questions on the Endocrine System

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The primary function of T3 and T4 is to:

A. Reduce blood glucose levels

B. Release calcitonin

C. Regulate bone growth

D. Increase metabolic rate

Correct Answer: Increase metabolic rate

Question 2 of 5

Which hormones of the adrenal glands supplement the sex hormones from the gonads?

A. Mineralocorticoids, such as aldosterone

B. Glucocorticoids, such as cortisol

C. Gonadocorticoids, such as the androgens

D. Epinephrine and norepinephrine

Correct Answer: Gonadocorticoids, such as the androgens

Question 3 of 5

Which of the following is an effect of aldosterone secretion?

A. Increases blood levels of Na+ and water

B. Decreases blood pressure

C. Reduces urine output

D. Not provided

Correct Answer: Increases blood levels of Na+ and water

Question 4 of 5

With regard to adrenal physiology

A. The only glucocorticoid secreted in significant amounts is cortisol

B. Dopamine is secreted by the adrenal medulla

C. The largest steroid molecules are oestrogens

D. Cortisol has negligible Mineralocorticoid activity

Correct Answer: Dopamine is secreted by the adrenal medulla

Question 5 of 5

An autoimmune form of hypothyroidism when the body destroys the thyroid cells is called

A. Hashimoto's disease

B. Graves disease

C. myxedema

D. acromegaly

Correct Answer: Hashimoto's disease

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