The sequence of events in hormonal regulation of the male reproductive system: a. The luteinizing hormone (LH) stimulates the interstitial cells to produce testosterone and the follicle-stimulating hormone (FSH) sustentacular cells to secrete inhibin and androgen-binding protein, which keeps some of the testosterone near the spermatogenic cells. b. Testosterone and inhibin both exert negative feedback controls on the hypothalamus and the anterior pituitary. c. The androgen-binding protein binds testosterone. d. Gonadotropin-releasing hormone (GnRH) stimulates the anterior pituitary to secrete FSH and LH. e. The hypothalamus releases GnRH. Introduction: Testosterone regulates spermatogenesis and other aspects of male reproductive physiology. The secretion by the hypothalamus is under the negative-feedback regulation. In this regulatory mechanism, the hypothalamus, testes, and anterior pituitary are involved.

Question

Want to see the full answer?

Answer 1

Question

Chapter 26, Problem 10CYR

Summary Introduction

To review:

The sequence of events in hormonal regulation of the male reproductive system:

a. The luteinizing hormone (LH) stimulates the interstitial cells to produce testosterone and the follicle-stimulating hormone (FSH) sustentacular cells to secrete inhibin and androgen-binding protein, which keeps some of the testosterone near the spermatogenic cells.

b. Testosterone and inhibin both exert negative feedback controls on the hypothalamus and the anterior pituitary.

c. The androgen-binding protein binds testosterone.

d. Gonadotropin-releasing hormone (GnRH) stimulates the anterior pituitary to secrete FSH and LH.

e. The hypothalamus releases GnRH.

Introduction:

Testosterone regulates spermatogenesis and other aspects of male reproductive physiology. The secretion by the hypothalamus is under the negative-feedback regulation. In this regulatory mechanism, the hypothalamus, testes, and anterior pituitary are involved.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

The shape of radishes may be long (SL/SL), oval (SL/SS), or round (SS/SS), and the color of radishes may be red (CR/CR), purple (CR/CW) or white (CW/CW). If a long, red radish plant is crossed with a round, white plant, what will be the appearance of the F1 and F2 generations?

None

Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…