Question

The hormone testosterone in testes is secreted by

• A. Tunica albuginea
• B. Sertoli cells
• C. Leydig/interstitial cells
• D. Primary spermatocytes

Answer 1

The correct option is C Leydig/interstitial cells

A. Tunica albuginea is the fibrous covering of testes and is composed of bundles of fibrous connective tissue.

B. Sertoli cells are part of seminiferous tubules and help in spermatogenesis (production of sperms from germ cells) as they provide nourishment to the developing sperms.

C. Leydig cells, also known as interstitial cells are present in the testis near seminiferous tubules. They secrete testosterone hormone which helps in the development of secondary sexual characteristics in males.

D. Primary spermatocytes are the male germ cells that undergo meiosis to form secondary spermatocytes which further undergo mitotic divisions to form spermatozoa. Spermatozoa then develop into sperm cells.

So, the correct answer is 'Leydig/interstitial cells'.