Question

Which one of the following statements best characterise the testis?

• A. The seminiferous epithelium contains only proliferative cells
• B. Functional compartmentalisation of the seminiferous epithelium depends on tight junctions.
• C. The interstitial tissue contains few capillaries
• D. The seminiferous epithelium contains numerous capillaries.

Answer 1

The correct option is B

Functional compartmentalisation of the seminiferous epithelium depends on tight junctions.

Each testis contains seminiferous tubules for spermatogenesis and interstitial (Intertubular) tissue rich in leydig cells for steroidogenesis. Seminiferous epithelium contains a continuous layer of sertoli cells, which are joined by tight intercellular junctions. These junctions divide the epithelium into a basal compartment that contains spermatogonia and an abdominal compartment.