male reproductive

Question 1

Q1: Why are the Leydig cells eosinophilic?

Answer 1

Contain many mitochondria.

Question 2

Q2: What is the primary source of testosterone in the testis?

Answer 2

Leydig cells.

Question 3

Q3: What are the components of the blood-testis barrier and what is its function?

Answer 3

Tight junctions between Sertoli cells isolate developing sperm and prevent their destruction by immune cells.

Question 4

Q4: What is the principal site of spermatozoa storage in the male reproductive organ?

Answer 4

Epididymis.

Question 5

Q5: What is the structural core of the stereocilia and what is its main function?

Answer 5

Actin filaments. Stereocilia of the epididymis (FYI: also found in the proximal part of the vas deference) are extremely long (upto 120 µm) and they facilitate absorption.

Question 6

Q6: What accounts for the difference in appearance in these two slides?

Answer 6

Young and old seminal vesicle, active vs. inactive.

Question 7

Q7: Which organs are the major producers of seminal fluid?

Answer 7

Seminal vesicle, prostate gland, and bulbo-urethral gland.

Question 8

Q8: Which of the male genital duct is embedded in dense connective tissue?

Answer 8

Rete testis.