Choose the true statement about male reproduction. There is one correct answer. Group of answer choices A rise in GnRH will tend to reduce testosterone levels. Suppression of LH and FSH will reduce sperm production. Testosterone is produced by the anterior pituitary. Leydig cells secrete LH.
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Testosterone QUESTION 10 A pituitary tumor interferes with FSH secretion. How would this affect a male? He would not produce sperm. QUESTION 11 Luteinizing hormone (LH) binds to interstitial (Leydig) cells and decreases testosterone production by the interstitial cells. It promotes sperm cell production by the interstitial cells. It inhibits sustentacular cells. It stimulates GnRH levels to increase in the testes. It increases testosterone production by the interstitial cells.
Madhur L.
Select the statement that is CORRECT. Select one: Rising levels of Follicle Stimulating Hormone directly stimulate Leydig cells to produce sperm. Sperm are produced by Sertoli Cells that make up the inner walls of the seminiferous tubules. Follicle Stimulating Hormone directly stimulates Interstitial cells to produce and secrete testosterone during spermatogenesis. Hormones from the hypothalamus, anterior pituitary, and testes control the male reproductive system through negative feedback. Inhibin is secreted by Sertoli cells when the sperm numbers are low.
Supreeta N.
The gland(s) whose secretions help in sperm activation (2 points) a. The prostate b. The seminal vesicles c. The bulbourethral glands d. The seminiferous tubules e. The interstitial cells Question 2 Where does testosterone production occur? (2 points) a. Interstitial cells b. Myoid cells c. Seminal vesicles d. Seminiferous tubules e. Epididymis Question 5 Which describes the regulation of testosterone production in males? (3 points) a. Negative feedback mechanism: When testosterone levels drop, this inhibits hormone release by the anterior pituitary and the hypothalamus and testosterone levels rise b. Positive feedback mechanism: When testosterone levels drop, this inhibits hormone release by the anterior pituitary and the hypothalamus and testosterone levels rise c. Negative feedback mechanism: When testosterone levels increase, this inhibits hormone release by the anterior pituitary and the hypothalamus and testosterone levels drop d. Positive feedback mechanism: When testosterone levels increase, this stimulates hormone release by the anterior pituitary and the hypothalamus and testosterone levels drop Question 6 Spermatogenesis production is stimulated directly by (3 points) a. Testosterone b. Luteinizing Hormone (LH) c. Androgen-binding protein (ABP) d. Inhibin Question 7 Which hormone is primarily responsible for male secondary sex characteristics? (3 points) a. Growth hormone b. Follicle-stimulating hormone c. Luteinizing hormone d. Testosterone e. Androgen-binding protein Question 8 Which is not a male secondary sex characteristic? (2 points) a. Development of facial and body hair b. Lower pitched voice c. Increased bone density d. Development of testes as opposed to ovaries Question 9 Which statement about hormonal regulation of male reproductive function is wrong? (3 points) a. Gonadotropin-releasing hormone (GnRH) from the hypothalamus stimulates the release of follicle-stimulating hormone (FSH) from the anterior pituitary b. The anterior pituitary releases androgen-binding protein (ABP) c. Androgen-binding protein (ABP) maintains high levels of testosterone d. Luteinizing hormone (LH) stimulates the interstitial cells to secrete testosterone e. The anterior pituitary releases luteinizing hormone (LH) Question 10 A young boy (who has not gone through puberty) does not produce follicle-stimulating hormone because of an injury to his anterior pituitary. However, his production of luteinizing hormone is normal. After he has grown to maturity, what would be correct? (3 points) a. He would be sterile; without follicle-stimulating hormone, there would be no spermatogenesis b. He will not develop secondary sex characteristics; he would not secrete testosterone c. He will be impotent (unable to have an erection) since there is no testosterone secretion d. The function of his interstitial cells will be impaired and there would be no testosterone produced
Adi S.
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