EBK HUMAN PHYSIOLOGY
15th Edition
ISBN: 8220106796238
Author: Fox
Publisher: YUZU
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Chapter 20, Problem 6RA
Summary Introduction
To determine:
The condition which is responsible for the development of female accessory sex organs in an embryo with the genotype XX.
Introduction:
The genotype of the embryo decides whether it is going to grow into a male or a female. An embryo with genotype XX will grow into a female whereas, an embryo having XY genotype will develop into a male child. The accessory sex organs include the uterus and the uterine or fallopian tubes.
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Students have asked these similar questions
Which of the following correctly describes the results of andropause?
Select one:
A. Lower sperm count and increased rate of testicular cancer.
B. Increased estrogen levels and decrease testosterone levels.
C. Decreased fertility and increased testosterone levels.
D. Reduction of muscle and bone mass and lower sperm count.
Which of the following is not a mechanism on how contraceptive pills work to prevent pregnancy?
A.
thinning the endometrium to prevent implantation
B.
inhibition of follicular development and suppression of ovulation
C.
progesterone inhibits the sperm from penetrating through the cervix and female upper tract by making the cervical mucus unfriendly
D.
stimulates the production of high testosterone levels
Menopause 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.
Chapter 20 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 20 - Define the terms diploid and haploid, and explain...Ch. 20 - Explain how the chromosomal sex determines whether...Ch. 20 - List the male and female accessory sex organs and...Ch. 20 - Describe the abnormalities characteristic of...Ch. 20 - Prob. 3aCPCh. 20 - Prob. 3bCPCh. 20 - Prob. 4aCPCh. 20 - Prob. 4bCPCh. 20 - Prob. 4cCPCh. 20 - Prob. 5aCP
Ch. 20 - Prob. 5bCPCh. 20 - Prob. 6aCPCh. 20 - Prob. 6bCPCh. 20 - Describe the roles of FSH and testosterone in...Ch. 20 - Prob. 8aCPCh. 20 - Prob. 8bCPCh. 20 - Prob. 9aCPCh. 20 - Prob. 9bCPCh. 20 - Describe the changes that occur in the ovary and...Ch. 20 - Describe the formation, function, and fate of the...Ch. 20 - Prob. 11aCPCh. 20 - Explain the significance of negative feedback...Ch. 20 - Prob. 12aCPCh. 20 - Prob. 12bCPCh. 20 - List the fetal and maternal components of the...Ch. 20 - Prob. 13bCPCh. 20 - Prob. 14CPCh. 20 - Prob. 15CPCh. 20 - Prob. 1RACh. 20 - Prob. 2RACh. 20 - Prob. 3RACh. 20 - Prob. 4RACh. 20 - Prob. 5RACh. 20 - Prob. 6RACh. 20 - Prob. 7RACh. 20 - Prob. 8RACh. 20 - Which of these statements is true?
Ch. 20 - Prob. 10RACh. 20 - Prob. 11RACh. 20 - Prob. 12RACh. 20 - Prob. 13RACh. 20 - Prob. 14RACh. 20 - Prob. 15RACh. 20 - The contents of the birth control pill
Ch. 20 - Which of the following statements regarding...Ch. 20 - Prob. 18RACh. 20 - Prob. 19RACh. 20 - Prob. 20RACh. 20 - Prob. 21RACh. 20 - Prob. 22RACh. 20 - Prob. 23RACh. 20 - Prob. 24RACh. 20 - Prob. 25RACh. 20 - Prob. 26RACh. 20 - Prob. 27RACh. 20 - Describe the steps of oogenesis when fertilization...Ch. 20 - Prob. 29RACh. 20 - Prob. 30RACh. 20 - Prob. 31RACh. 20 - Prob. 32RACh. 20 - Prob. 33RACh. 20 - Prob. 34RACh. 20 - Prob. 35RACh. 20 - Prob. 36RACh. 20 - Prob. 37RACh. 20 - Prob. 38RACh. 20 - Prob. 39RACh. 20 - Prob. 40RACh. 20 - Prob. 41RACh. 20 - Prob. 42RACh. 20 - Prob. 43RACh. 20 - Prob. 44RA
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- Which of the following is primarily responsible for the development of male external sex organs? A. Testosterone B. Anti-Mullerian hormone C. Sex-determining region of Y chromosome D. Dihydro-testosterone E. All of the abovearrow_forwardWhich of the following correctly describes the results of andropause? Select one: a. Reduction of muscle and bone mass and lower sperm count b. Increased estrogen levels and decreased testosterone levels c. Lower sperm count and increased rate of testicular cancer d. Decreased fertility and increased testosterone levelsarrow_forwardAccording to the diagram at right, FSH injections to super-stimulate the ovaries will: a. Rescue the subordinate follicles from atresia b. Reverse atresia of subordinate follicles c. Stimulate new waves of follicular growth d. Cause ovulation of atretic follicles what prevents the dominant follicles of Waves 1 and 2 from ovulating? a. follicles are not big enough b. the animal is not in heat c. the high progesterone prevents the LH/FSH surge d. all of the above e. none of the abovearrow_forward
- The hormone estrogen: A. Stimulates breasts B. Maintains functional accessory reproductive glands and organ C. Maintains female secondary sex characteristics D. Initiates repair and growth of the endometrium E. All of the answers are correcarrow_forwardWhich of the following statement correctly describe the role of androgen in the male reproductive system? Select one: A. LH stimulates the Sertoli cell to produce inhibin and to start spermatogenesis. B. Increased levels of inhibin released by the interstitial cells result in lower levels of FSH and testosterone. C. Increased levels of testosterone feedbacks negatively to the anterior pituitary and hypothalamus. D. GnRH is released by the anterior pituitary and stimulates the release of FSH and LH.arrow_forwardWhat is the role of the SRY gene on the Y chromosome? a. Production of Mullerian hormone proteins b. Production of Anti-Mullerian hormone proteins c. Production of TDF (Testis-Determining Factor) d. Production of prostaglandin e. Production of testosteronearrow_forward
- During pregnancy,a. the ovarian and uterine cycles occur more quickly than before.b. GnRH is produced at a higher level than before.c. the ovarian and uterine cycles do not occur.d. the female secondary sex characteristics are not maintained.e. Both b and c are correct.arrow_forwardWhich of the following statements correctly describes the effects of increased testosterone? a. Increased levels of testosterone result in increased sperm production b. Increased levels of testosterone decreases the release of FSH and LH c. Increased levels of testosterone stimulates the release of GnRH d. Increased levels of testosterone stimulates the release of FSH and LH.arrow_forwardWhich 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.arrow_forward
- The onset of labour both at term and preterm is associated with a functional withdrawl of progesterone activity at the level of the uterus. One method that can be used to reduce preterm labour is to supplement with synthetic progesterone. Progesterone supplementation may help to prevent preterm delivery by Select one: a. increasing levels of FSH b. decreasing the endometrium c. decreasing levels of estrogen d. calming uterine contractionsarrow_forwardWhich of the following is NOT associated with the embryo developing into a male: a. androgen c. Müllerian ducts b. Wolffian ducts d. testosteronearrow_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_forward
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