Question 1

Which structure in the male reproductive system is responsible for producing the majority of the fluid component of semen?

Accepted Answer

Seminal glands

Question 2

Normal sperm development requires a temperature lower than core body temperature. Which mechanism is primarily responsible for maintaining this temperature in the testes?

Accepted Answer

Contraction and relaxation of scrotal muscles

Question 3

Which of the following best describes the function of nurse cells (Sertoli cells) in the seminiferous tubules?

Accepted Answer

They maintain the blood testis barrier and support spermatogenesis.

Question 4

During spermatogenesis, what is the chromosomal composition of secondary spermatocytes?

Accepted Answer

23 chromosomes, each with two chromatids

Question 5

Which hormone stimulates the secretion of androgen-binding protein (ABP) by nurse cells?

Accepted Answer

Follicle-stimulating hormone (FSH)

Question 6

What is the primary function of the acrosome in the sperm head?

Accepted Answer

It contains enzymes essential for fertilization.

Question 7

Which of the following is TRUE regarding the process of meiosis in spermatogenesis?

Accepted Answer

Meiosis produces four haploid gametes from one diploid cell.

Question 8

Which structure is responsible for recycling damaged sperm and facilitating their functional maturation?

Accepted Answer

Epididymis

Question 9

A patient presents with prostatic inflammation. Which term best describes this condition?

Accepted Answer

Prostatitis

Question 10

Which of the following equations correctly represents the reductional division of meiosis I in spermatogenesis?

Accepted Answer

$$2n \rightarrow n$$

Question 11

Which of the following is a function of the bulbo-urethral glands?

Accepted Answer

Secretion of thick, alkaline mucus to neutralize urinary acids

Question 12

Which of the following best describes the role of inhibin secreted by nurse cells?

Accepted Answer

It provides negative feedback to decrease FSH and GnRH secretion.

Question 13

Which region of the male urethra passes through the prostate gland?

Accepted Answer

Prostatic urethra

Question 14

Which of the following is TRUE about the anatomy of mature sperm?

Accepted Answer

Mature sperm lack endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes.

Question 15

Which hormone is released in response to GnRH and targets interstitial endocrine cells to stimulate testosterone production?

Accepted Answer

Luteinizing hormone (LH)

Question 16

Which of the following best describes the process of capacitation in sperm?

Accepted Answer

Sperm become motile when mixed with seminal gland secretions and capable of fertilization when exposed to the female reproductive tract.

Question 17

Which of the following is a direct effect of testosterone in the male body?

Accepted Answer

Stimulates spermatogenesis and maintains accessory glands

Question 18

Which of the following best describes the chromosomal composition of spermatids produced at the end of meiosis II?

Accepted Answer

Each spermatid contains 23 chromosomes (haploid, n)

Question 19

Which of the following is TRUE regarding the blood testis barrier?

Accepted Answer

It isolates the seminiferous tubules from general circulation.

Question 20

Which equation represents the number of chromosomes in a zygote after fertilization?

Accepted Answer

$$n + n = 2n$$

Chapter 28: Male Reproductive System – Structure and Function

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