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Male Reproductive Physiology

Reproductive Physiology · Male Reproductive Physiology · medium

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Male Reproductive Physiology MCQs: practice questions

Sample Male Reproductive Physiology multiple-choice questions from Reproductive Physiology.

Finasteride reduces prostate androgen action by inhibiting:
- A. 5α-reductase
- B. Aromatase
- C. LH secretion directly
- D. FSH receptors
- E. Cholesterol synthesis
The conversion of testosterone to dihydrotestosterone in accessory sex organs is catalyzed by:
- A. Cholesterol desmolase
- B. Aromatase
- C. 5α-reductase
- D. 17,20-lyase
- E. 21β-hydroxylase
A patient with androgen insensitivity disorder may have elevated testosterone because:
- A. Leydig cells cannot synthesize testosterone
- B. LH secretion is completely absent
- C. Feedback inhibition is reduced because androgen receptors are absent
- D. FSH directly stimulates testosterone
- E. DHT is overproduced by the prostate
In a genetically male fetus, testosterone promotes development of the:
- A. Wolffian ducts
- B. Uterus
- C. Fallopian tubes
- D. Müllerian ducts
- E. Ovaries
If FSH secretion falls while LH remains normal, the most direct testicular effect is reduced:
- A. Leydig-cell testosterone synthesis
- B. Sertoli-cell support of spermatogenesis
- C. DHT conversion in prostate
- D. Adrenal androgen production
- E. GnRH secretion
If LH secretion falls markedly while FSH remains normal, the most direct effect is decreased:
In the absence of testosterone, the Wolffian ducts:
The blood-testes barrier is maintained by:
The major endocrine function of the Leydig cell is:
The major endocrine function of the Sertoli cell relevant to feedback control is:
A 5α-reductase inhibitor would be expected to reduce:
The temperature of the testes is normally maintained below core body temperature because:
During childhood, the relative relationship between FSH and LH is typically:
The epididymis is primarily involved in:
Testosterone is particularly important for differentiation of the:
Testosterone provides negative feedback primarily by inhibiting:
In a genetically male fetus, anti-Müllerian hormone is produced by:
The hormone secreted by Sertoli cells that inhibits FSH secretion is:
Dihydrotestosterone is particularly important for development of the:
LH stimulates testosterone synthesis in Leydig cells primarily by stimulating:
The primary androgen synthesized and secreted by the Leydig cells is:
A major paracrine action of testosterone within the testis is to:
Testosterone contributes to male secondary sex characteristics including:
Puberty is initiated by the onset of:
The hypothalamic hormone that stimulates secretion of both LH and FSH is:
In androgen insensitivity disorder, the fundamental defect is a deficiency of:
Spermatogenesis occurs within the:
During reproductive years, the typical relationship is:
A patient with destruction of Sertoli cells would most directly have decreased:
FSH acts primarily on which testicular cells to maintain spermatogenesis?

Male Reproductive Physiology — Reproductive Physiology

Male Reproductive Physiology MCQs: practice questions

Finasteride reduces prostate androgen action by inhibiting:

The conversion of testosterone to dihydrotestosterone in accessory sex organs is catalyzed by:

A patient with androgen insensitivity disorder may have elevated testosterone because:

In a genetically male fetus, testosterone promotes development of the:

If FSH secretion falls while LH remains normal, the most direct testicular effect is reduced:

If LH secretion falls markedly while FSH remains normal, the most direct effect is decreased:

In the absence of testosterone, the Wolffian ducts:

The blood-testes barrier is maintained by:

The major endocrine function of the Leydig cell is:

The major endocrine function of the Sertoli cell relevant to feedback control is:

A 5α-reductase inhibitor would be expected to reduce:

The temperature of the testes is normally maintained below core body temperature because:

During childhood, the relative relationship between FSH and LH is typically:

The epididymis is primarily involved in:

Testosterone is particularly important for differentiation of the:

Testosterone provides negative feedback primarily by inhibiting:

In a genetically male fetus, anti-Müllerian hormone is produced by:

The hormone secreted by Sertoli cells that inhibits FSH secretion is:

Dihydrotestosterone is particularly important for development of the:

LH stimulates testosterone synthesis in Leydig cells primarily by stimulating:

The primary androgen synthesized and secreted by the Leydig cells is:

A major paracrine action of testosterone within the testis is to:

Testosterone contributes to male secondary sex characteristics including:

Puberty is initiated by the onset of:

The hypothalamic hormone that stimulates secretion of both LH and FSH is:

In androgen insensitivity disorder, the fundamental defect is a deficiency of:

Spermatogenesis occurs within the:

During reproductive years, the typical relationship is:

A patient with destruction of Sertoli cells would most directly have decreased:

FSH acts primarily on which testicular cells to maintain spermatogenesis?