Fairly easy

Testosterone is secreted by the

Correct answer: B. interstitial cells of Leydig

  • A. Sertoli cells
  • B. interstitial cells of Leydig
  • C. germinal epithelium
  • D. seminal vesicles

Explanation

The Leydig cells lie in the connective tissue between the seminiferous tubules and secrete testosterone in response to luteinising hormone from the anterior pituitary. Sertoli cells sit inside the tubules and nourish the developing sperm, which is why they are the usual confusion. Testosterone maintains sperm production and the secondary sexual characters such as voice and body hair.

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About Human Reproductive System

The human reproductive system includes the male and female organs that produce gametes, secrete sex hormones and support fertilization and development. Questions cover the testes, ovaries, reproductive ducts, menstrual and ovarian cycles, ovulation, fertilization, implantation, placenta formation and the roles of FSH, LH, oestrogen, progesterone and testosterone.

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