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Questions and Answers

What is the location and function of Sertoli cells and what hormone are they stimulated by?

The Sertoli cells, stimulated by FSH to increase spermatogenesis and produce inhibin, are in the seminiferous tubules- the sites of sperm production. (correct)
The Sertoli cells, located in the seminiferous tubule, are stimulated by LH to produce testosterone.
The Sertoli cells, stimulated by LH to increase spermatogenesis and produce inhibin, are in the seminiferous tubules- the sites of sperm production.

What is the location and function of the Leydig cells and what hormone are they stimulated by?

Leydig cells, located in the seminiferous tubules, are stimulated by LH to produce testosterone.
Leydig cells, located in the seminiferous tubules, are stimulated by FSH to produce epinephrine.
Leydig cells, located in the vas deferens, are stimulated by FSH to produce testosterone.
Leydig cells, located in the interstitial space between seminiferous tubules, are stimulated by LH to produce testosterone. (correct)

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Functions of Sertoli cells

Provide blood–testes barrier to chemicals in the plasma (C), Secrete anti-müllerian hormone (AMH), formerly known as Müllerian-inhibiting substance (MIS), which causes the primordial female duct system to regress during embryonic life (B), Secrete luminal fluid, including androgen-binding protein (A), Respond to stimulation by testosterone and FSH to secrete paracrine agents that stimulate sperm proliferation and differentiation (D), Secrete paracrine agents that influence the function of Leydig cells (@) Signup and view all the answers

How does testosterone inhibit LH secretion? (Select all that apply)

It acts on the hypothalamus to decrease the amplitude of GnRH bursts, which results in a decrease in the secretion of gonadotropins. (A), It acts directly on the anterior pituitary gland to decrease the LH response to any given amount of GnRH. (B) Signup and view all the answers

How do the testes reduce FSH secretion?

The major inhibitory signal, exerted directly on the anterior pituitary gland, is the protein hormone inhibin secreted by the Sertoli cells (A) Signup and view all the answers