WGU D313 - Anatomy and Physiology 2
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Endocrine System
1. Which hormone is directly responsible for the reabsorption of
water in the kidneys, thereby concentrating urine?
A) Aldosterone
B) Atrial Natriuretic Peptide
C) Antidiuretic Hormone (ADH)
D) Cortisol
Answer: C) Antidiuretic Hormone (ADH)
2. The "master gland" of the endocrine system, which controls the
activity of many other glands, is the:
A) Thyroid gland
B) Adrenal gland
C) Pineal gland
D) Pituitary gland
Answer: D) Pituitary gland
3. Which pancreatic cell type secretes glucagon?
A) Alpha cells
B) Beta cells
C) Delta cells
D) Acinar cells
Answer: A) Alpha cells
,4. A patient presents with high blood glucose, excessive thirst, and
frequent urination. The most likely hormone involved is:
A) Insulin deficiency
B) Glucagon excess
C) Estrogen deficiency
D) Thyroxine excess
Answer: A) Insulin deficiency
5. The primary effect of Thyroid-Stimulating Hormone (TSH) is to:
A) Stimulate the adrenal cortex
B) Stimulate the thyroid gland
C) Inhibit the release of growth hormone
D) Stimulate milk production
Answer: B) Stimulate the thyroid gland
6. Which of the following is a mineralocorticoid hormone that
regulates sodium and potassium balance?
A) Cortisol
B) Epinephrine
C) Aldosterone
D) Testosterone
Answer: C) Aldosterone
7. The hormone oxytocin is produced in the hypothalamus and
released from the:
A) Anterior pituitary
B) Posterior pituitary
C) Adrenal medulla
D) Thyroid gland
Answer: B) Posterior pituitary
, 8. Which hormone plays a key role in regulating the body's
circadian rhythm?
A) Melatonin
B) Insulin
C) Prolactin
D) Parathyroid Hormone (PTH)
Answer: A) Melatonin
9. Gigantism is caused by the hypersecretion of which hormone
during childhood?
A) Thyroxine
B) Growth Hormone (GH)
C) Cortisol
D) Insulin
Answer: B) Growth Hormone (GH)
10. The primary function of Parathyroid Hormone (PTH) is to:
A) Lower blood calcium levels
B) Raise blood calcium levels
C) Lower blood sodium levels
D) Raise blood glucose levels
Answer: B) Raise blood calcium levels
Cardiovascular System: Blood
11. The liquid matrix of blood is called:
A) Lymph
B) Plasma
C) Serum
D) Interstitial fluid
Answer: B) Plasma
(New Updates Study Package
Deal with Solutions) Verified Questions &
Correct Answers | Grade A | 100%
Guarantee Pass
Endocrine System
1. Which hormone is directly responsible for the reabsorption of
water in the kidneys, thereby concentrating urine?
A) Aldosterone
B) Atrial Natriuretic Peptide
C) Antidiuretic Hormone (ADH)
D) Cortisol
Answer: C) Antidiuretic Hormone (ADH)
2. The "master gland" of the endocrine system, which controls the
activity of many other glands, is the:
A) Thyroid gland
B) Adrenal gland
C) Pineal gland
D) Pituitary gland
Answer: D) Pituitary gland
3. Which pancreatic cell type secretes glucagon?
A) Alpha cells
B) Beta cells
C) Delta cells
D) Acinar cells
Answer: A) Alpha cells
,4. A patient presents with high blood glucose, excessive thirst, and
frequent urination. The most likely hormone involved is:
A) Insulin deficiency
B) Glucagon excess
C) Estrogen deficiency
D) Thyroxine excess
Answer: A) Insulin deficiency
5. The primary effect of Thyroid-Stimulating Hormone (TSH) is to:
A) Stimulate the adrenal cortex
B) Stimulate the thyroid gland
C) Inhibit the release of growth hormone
D) Stimulate milk production
Answer: B) Stimulate the thyroid gland
6. Which of the following is a mineralocorticoid hormone that
regulates sodium and potassium balance?
A) Cortisol
B) Epinephrine
C) Aldosterone
D) Testosterone
Answer: C) Aldosterone
7. The hormone oxytocin is produced in the hypothalamus and
released from the:
A) Anterior pituitary
B) Posterior pituitary
C) Adrenal medulla
D) Thyroid gland
Answer: B) Posterior pituitary
, 8. Which hormone plays a key role in regulating the body's
circadian rhythm?
A) Melatonin
B) Insulin
C) Prolactin
D) Parathyroid Hormone (PTH)
Answer: A) Melatonin
9. Gigantism is caused by the hypersecretion of which hormone
during childhood?
A) Thyroxine
B) Growth Hormone (GH)
C) Cortisol
D) Insulin
Answer: B) Growth Hormone (GH)
10. The primary function of Parathyroid Hormone (PTH) is to:
A) Lower blood calcium levels
B) Raise blood calcium levels
C) Lower blood sodium levels
D) Raise blood glucose levels
Answer: B) Raise blood calcium levels
Cardiovascular System: Blood
11. The liquid matrix of blood is called:
A) Lymph
B) Plasma
C) Serum
D) Interstitial fluid
Answer: B) Plasma
