Question 1

Which hormone is primarily responsible for stimulating spermatogenesis in the seminiferous tubules of the testes?

Accepted Answer

Follicle-stimulating hormone (FSH)

Question 2

A patient presents with low blood calcium levels. Which hormone is most likely to be deficient?

Accepted Answer

Parathyroid hormone (PTH)

Question 3

During the menstrual cycle, a surge in which hormone triggers ovulation?

Accepted Answer

Luteinizing hormone (LH)

Question 4

Which of the following is a direct effect of testosterone in males?

Accepted Answer

Growth and maintenance of accessory sex organs

Question 5

Which hormone is secreted by the anterior pituitary and stimulates the thyroid gland?

Accepted Answer

Thyroid-stimulating hormone (TSH)

Question 6

A deficiency in which hormone would most likely result in decreased sodium retention and low blood pressure?

Accepted Answer

Mineralocorticoids (mainly aldosterone)

Question 7

Which cell type in the testes is responsible for producing testosterone?

Accepted Answer

Leydig cells

Question 8

What is the primary effect of estradiol-17$$eta$$ and progesterone on the female reproductive tract?

Accepted Answer

Maintain structure of reproductive tract and secondary sex characteristics

Question 9

Which hormone is released from the hypothalamus to stimulate the anterior pituitary to secrete FSH and LH?

Accepted Answer

Gonadotropin-releasing hormone (GnRH)

Question 10

A patient with hyperplasia of the prostate is most likely experiencing an abnormal response to which hormone?

Accepted Answer

Testosterone

Question 11

Which hormone is responsible for stimulating the development of the Graafian follicle in the ovary?

Accepted Answer

Follicle-stimulating hormone (FSH)

Question 12

Which of the following best describes the negative feedback mechanism regulating LH secretion in males?

Accepted Answer

High levels of testosterone inhibit LH secretion

Question 13

Which hormone is primarily responsible for stimulating erythropoiesis (red blood cell formation) in males?

Accepted Answer

Testosterone

Question 14

Which of the following is a function of Sertoli cells in the seminiferous tubules?

Accepted Answer

Create a blood-testis barrier and support spermatogenesis

Question 15

Which hormone is responsible for stimulating milk production in the mammary glands?

Accepted Answer

Prolactin

Question 16

Which hormone is converted by $$5\alpha-$$reductase to dihydrotestosterone (DHT) in the prostate and skin?

Accepted Answer

Testosterone

Question 17

A patient with excessive glucocorticoid secretion is likely to experience which of the following effects?

Accepted Answer

Increased glucose metabolism

Question 18

Which hormone is secreted by the adrenal medulla and causes adrenergic stimulation?

Accepted Answer

Epinephrine

Question 19

During the follicular phase of the ovarian cycle, which hormone increases as the follicle grows?

Accepted Answer

Estradiol

Question 20

Which hormone is responsible for stimulating the release of cortisol from the adrenal cortex?

Accepted Answer

Adrenocorticotropic hormone (ACTH)

P: Ch 20

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