Chapter 17

Question 1

Which enzyme breaks down cyclic AMP?

Answer 1

Phosphodiesterase

Question 2

Where are the hormones secreted by the posterior pituitary produced?

Answer 2

Hypothalamus

Question 3

Which of the following hormones is primarily responsible for regulating metabolic rate?

Answer 3

Thyroxine (T4)

Question 4

The hypothalamus controls the anterior pituitary gland by releasing which type of hormones?

Answer 4

Tropic hormones

Question 5

The release of growth hormone (GH) is stimulated by:

Answer 5

Growth hormone-releasing hormone (GHRH)

Question 6

Which hormone is responsible for stimulating milk production after child birth?

Answer 6

Prolactin

Question 7

What does the hormone cortisol help regulate?

Answer 7

Blood glucose levels

Question 8

What is the primary function of the parathyroid hormone (PTH)?

Answer 8

To increase blood calcium levels

Question 9

Which gland produces adrenaline (epinephrine) and norepinephrine?

Answer 9

Adrenal glands

Question 10

Which hormone secreted by the thyroid gland helps regulate calcium levels in the blood?

Answer 10

Calcitonin

Question 11

What type of feedback mechanism regulates the secretion of most hormones in the body?

Answer 11

Negative feedback

Question 12

Which of the following is true regarding the adrenal medulla?

Answer 12

It secretes epinephrine and norepinephrine

Question 13

What is the primary role of the hormone aldosterone?

Answer 13

To regulate sodium and potassium balance

Question 14

Which of the following is the main action of antidiuretic hormone (ADH)?

Answer 14

Promoting water retention in the kidneys

Question 15

What is the effect of thyroid-stimulating hormone (TSH)?

Answer 15

Stimulates the production of thyroid hormones

Question 16

Which of the following hormones is produced by the anterior pituitary gland?

Answer 16

Thyroid-stimulating hormone (TSH)

Question 17

What is the function of glucagon in blood glucose regulation?

Answer 17

It increases blood glucose levels by stimulating glycogen breakdown

Question 18

Which of the following hormones is involved in the body’s fight-or-flight response?

Answer 18

Epinephrine

Question 19

Which condition is caused by hypersecretion of cortisol?

Answer 19

Cushings syndrome

Question 20

What is the function of insulin in blood glucose regulation?

Answer 20

To promote the uptake of glucose into cells, lowering blood glucose levels

Question 21

What role does the pineal gland play in the endocrine system?

Answer 21

It regulates the circadian rhythm through the secretion of melatonin

Question 22

Which of the following is the result of hypersecretion of growth hormone during adulthood?

Answer 22

Acromegaly

Question 23

Which hormone is produced by the testes and is responsible for male secondary sexual characteristics?

Answer 23

Testosterone

Question 24

Which of the following is true about the pancreas?

Answer 24

It secretes insulin and glucagon to regulate blood sugar

Question 25

Which of the following hormones increases during times of stress to prepare the body for a fight-or-flight response?

Answer 25

Cortisol

Question 26

Which hormone is secreted by the adrenal cortex to help the body respond to stress?

Answer 26

Cortisol