What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 25, Problem 11MC
Summary Introduction
Introduction:
The vas deferens are the pair of tubes that carry the sperm out of the testes.
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The reason why the testes are suspended in the scrotum is to
:A.Create extra space for the sex organs
B.Reduce the chance of infection from the enteric bacteria
C.Place sperm storage sites nearer the penis
D.Protect sperm from the immune system
E.Provide cooler temperature
Testosterone is produced in thea. interstitial cells.b. seminiferous tubules of the testes.c. anterior lobe of the pituitary gland.d. sperm cells
Which of the following statements is NOT a role of follicle stimulating hormone (FSH) in the male reproductive system?
a. It is suppressed by increased levels of testosterone and inhibin.
b. It stimulates the Sertoli cells to produce sperm.
c. It increases the production of inhibin.
d. It stimulates a primary follicle to develop.
Chapter 25 Solutions
What is Life? A Guide to Biology with Physiology
Ch. 25 - Prob. 1SACh. 25 - Prob. 2SACh. 25 - Prob. 3SACh. 25 - Prob. 4SACh. 25 - Prob. 5SACh. 25 - Prob. 6SACh. 25 - Prob. 7SACh. 25 - Prob. 8SACh. 25 - Prob. 9SACh. 25 - Prob. 10SA
Ch. 25 - Prob. 11SACh. 25 - Prob. 12SACh. 25 - Prob. 13SACh. 25 - Prob. 14SACh. 25 - Prob. 15SACh. 25 - Prob. 1MCCh. 25 - Prob. 2MCCh. 25 - Prob. 3MCCh. 25 - Prob. 4MCCh. 25 - Prob. 5MCCh. 25 - Prob. 6MCCh. 25 - Prob. 7MCCh. 25 - Prob. 8MCCh. 25 - Prob. 9MCCh. 25 - Prob. 10MCCh. 25 - Prob. 11MCCh. 25 - Prob. 12MCCh. 25 - Prob. 13MCCh. 25 - Prob. 14MCCh. 25 - Prob. 15MC
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- Sperm are produced in the _______. a. scrotum b. seminal vesicles c. seminiferous tubules d. prostate glandarrow_forwardInterstitial cell dysfunction would result in all EXCEPT: a. all of these circumstances would occur b. failure of the vas deferens to develop during gestration O c. low levels of androgen-binding protein d. low sperm counts e. elevated LH levelsarrow_forwardMenopause is characterized primarily bya. primary ovarian failure.b. loss of estrogen secretion from the ovary due to a decrease in LH.c. loss of estrogen secretion from the ovary due to a decrease in FSH.d. a decrease in FSH and LH due to increased inhibin.e. a decrease in FSH and LH due to a decrease in GnRH pulses.arrow_forward
- Which statement/s is/are TRUE?A. The prostate secretes enzymes to break down the semen clot once in the female reproductive tract.B. Sertoli cells support sperm development through spermatogenesisC. The bulbourethral glands secrete viscous fluid containing mucous that functions as a lubricant.D. A, BE. A, B, Carrow_forwardDevelopment of normal female internal and external genitalia requiresa. Müllerian-inhibiting substance.b. expression of the SRY gene.c. insensitivity to circulating testosterone.d. complete absence of testosterone.e. absence of a Y chromosome.arrow_forwardWhich statement is FALSE?A. The vas deferens joins the seminal vesicles to form the ejaculatory ductB. The ejaculatory duct penetrates the prostate gland to join the urethra.C. The seminal vesicles secrete alkaline fluid with fructose, enzymes and prostaglandinsD. The alkaline fluid is important to neutralize the acidity of the female reproductive tract.E. The prostate gland secretes citrate which is necessary for lubrication.arrow_forward
- Which of the following hormones exogenously-administered as drugs is most likely to decrease ovarian production of secondary oocytes and testicular production of secondary spermatocytes. A. Estradiol. B. Progesterone. C. prolactin. D. testosterone. E. TRHarrow_forwardSelect the most accurate statement regarding male sexual function. A. Damage to the sympathetic nuclei will not impair and have no consequences on male sexual function. B. Onuf’s nuclei hijacks pudendal nerve to temporarily cause it to have parasympathetic function, thereby allowing contractions of bulbospongiosus and ischiocavernosus C. Males can voluntarily stop during the seminal emission and the expulsion phase. D. The spinal ejaculation generator receives afferent stimulation from obturator nerve.arrow_forwardWhich of the following statements about the male reproductive system is false? a. The vas deferens carries sperm from the testes to the penis. b. Sperm mature in seminiferous tubules in the testes. c. Both the prostate and the bulbourethral glands produce components of the semen. d. The prostate gland is located in the testes.arrow_forward
- The order of ducts in the male genital system: Select one: O a. Tubuli recti- Rete testis- Vasa efferentia- Ejacutatory duct b. Tubuli recti- Rete testis- Vasa efferentia- epididymis c. Rete testis- Tubuli recti- Vasa efferentia- epididymis d. Vasa efferentia- Ejacutatory duct- Epididymis O The connective tissue layer of a mucous membrane is named:arrow_forwardE B A В Identify the structure that secretes the hormone involved in the development of the secondary male sex characteristics and contributes to spermatogenesis. Select one: a. D, which is the Sertoli cell b. A, which is the spermatocyte O c. C, which is the sperm cell O d. B, which is the interstitial cellarrow_forwardThe site of final maturation and storage of sperm cells before theirejaculation is thea. seminal vesicles. d. epididymis.b. seminiferous tubules. e. sperm bank.c. glans penis.arrow_forward
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