Question 1

Which of the following best explains why men are able to produce spermatozoa throughout their lifetime?

Accepted Answer

Spermatogonia undergo continuous mitosis, maintaining a stem cell population.

Question 2

A patient presents with undescended testes (cryptorchidism). Which function is most likely to be impaired?

Accepted Answer

Spermatogenesis

Question 3

Which structure forms the blood-testis barrier and what is its primary function?

Accepted Answer

Tight junctions between Sertoli cells; to protect developing sperm from the immune system

Question 4

During spermatogenesis, which phase involves the reduction of chromosome number from diploid to haploid?

Accepted Answer

Meiosis (Spermatocyte phase)

Question 5

Which of the following is a function of Sertoli cells?

Accepted Answer

Phagocytosis of residual cytoplasm from developing spermatids

Question 6

A man undergoes a vasectomy. Which immune response may occur as a result?

Accepted Answer

Production of sperm-specific antibodies due to exposure of sperm antigens to the immune system

Question 7

Which of the following best describes the epithelium lining the ductus epididymis?

Accepted Answer

Pseudostratified columnar epithelium with stereocilia

Question 8

Which gland produces a secretion that lubricates the penile urethra prior to ejaculation?

Accepted Answer

Bulbourethral (Cowper’s) glands

Question 9

Which of the following is a correct sequence for the passage of sperm from the seminiferous tubules to the urethra?

Accepted Answer

Seminiferous tubules → straight tubules → rete testis → efferent ductules → epididymis → ductus deferens → urethra

Question 10

Which hormone is produced by Sertoli cells and inhibits the secretion of follicle-stimulating hormone (FSH)?

Accepted Answer

Inhibin

Question 11

A patient with prostate enlargement is most likely to experience which of the following symptoms?

Accepted Answer

Difficulty initiating urination and a weak urinary stream

Question 12

Which of the following best describes the function of the seminal vesicles?

Accepted Answer

Produce a fructose-rich fluid that nourishes sperm

Question 13

Which compartment of the seminiferous tubule contains spermatogonia and early primary spermatocytes?

Accepted Answer

Basal compartment

Question 14

Which phase of spermiogenesis involves the formation of the acrosomal cap?

Accepted Answer

Cap phase

Question 15

Which of the following is a function of androgen-binding protein (ABP) produced by Sertoli cells?

Accepted Answer

Maintains high local concentrations of testosterone in the seminiferous tubules

Question 16

Which of the following best describes the role of Leydig cells?

Accepted Answer

Produce testosterone in response to luteinizing hormone (LH)

Question 17

Which of the following is a clinical consequence of failure of the blood-testis barrier?

Accepted Answer

Production of sperm-specific antibodies leading to infertility

Question 18

Which of the following best describes the epithelium of the prostatic urethra?

Accepted Answer

Transitional epithelium (urothelium)

Question 19

Which of the following is a correct statement about the process of capacitation?

Accepted Answer

It occurs in the female reproductive tract and enables sperm to fertilize an oocyte.

Question 20

Which of the following is a distinguishing feature of the corpus spongiosum compared to the corpora cavernosa?

Accepted Answer

It contains more elastic fibers and less smooth muscle.

Male Reproductive System: Structure, Function, and Spermatogenesis

스터디 가이드 - 연습 문제