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Which one of the following is NOT an anterior pituitary hormone:

A.

Prolactin (PRL)

B.

adrenocorticotropic hormone (ACTH)

C.

follicle-stimulating hormone (FSH)

D.

antidiuretic hormone (ADH)

E.

luteinizing hormone (LH)

Answer and Explanation

The Correct Answer is D

a) Prolactin (PRL): Secreted by anterior pituitary to stimulate milk production.

b) Adrenocorticotropic hormone (ACTH): Stimulates adrenal cortex; anterior pituitary product.

c) Follicle-stimulating hormone (FSH): Produced by the anterior pituitary; regulates gonads.

d) Antidiuretic hormone (ADH): ADH is produced by the hypothalamus and stored/released by the posterior pituitary.

e) Luteinizing hormone (LH): Another anterior pituitary hormone involved in reproduction.


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Related Questions

Correct Answer is C

Explanation

a) human growth hormone (hGH): Stimulates growth of tissues and bones but does not directly stimulate erythropoiesis.

b) calcitonin (CT): Regulates calcium levels; no role in red blood cell production.

c) erythropoietin (EPO): Produced by the kidneys, it stimulates red bone marrow to increase production of erythrocytes (RBCs) in response to hypoxia.

d) follicle-stimulating hormone (FSH): Involved in reproductive processes, not blood cell formation.

Correct Answer is C

Explanation

a) Hepatic portal system: This carries blood from the gastrointestinal tract to the liver, not the brain.

b) Coronary circulatory system: This system supplies the heart muscle, not involved in hormone transport from hypothalamus.

c) hypophyseal portal system: The hypophyseal portal system is a specialized vascular system that transports releasing and inhibiting hormones from the hypothalamus to the anterior pituitary.

d) Hypothalamus-hypophysial tract: This is a neural pathway used to transport ADH and oxytocin to the posterior pituitary, not the anterior.

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