EBK HUMAN PHYSIOLOGY
15th Edition
ISBN: 8220106796238
Author: Fox
Publisher: YUZU
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Question
Chapter 20, Problem 1RA
Summary Introduction
To review:
The level of estrogen and progesterone during the menstrual phase.
Introduction:
Menstrual cycle has four phases, namely menstruation phase, follicular phase, ovulation phase, and luteal phase. It lasts for 28 days but the duration may vary based on a number of factors. Many hormones are responsible for regulating the events that occur during the four phases of the menstrual cycle.
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Which row correctly identifies the function and a source of hCG, respectively?
Select one:
A.
Function
Source
Stimulate Estrogen
Ovary
B.
Function
Source
Stimulate FSH
Anterior Pituitary
C.
Function
Source
Aid Implantation
Uterus
D.
Function
Source
Maintains Corpus Luteum
Trophoblast and Placenta
Which row correctly identifies the function and source of hCG, respectively?
Select one:
a.
Function
Source
Stimulates FSH
Anterior pituitary
b.
Function
Source
Aids implantation
Uterus
c.
Function
Source
Maintains corpus luteum
Trophoblast and placenta
d.
Function
Source
Stimulates estrogen
Ovary
A. There is an increase of FSH at the beginning of the menstrual cycle. What causes it?
B. There is a surge in E2 level before the ovulation. What causes it?
C. There is a decrease of FSH before the ovulation. What causes it?
D. There is a surge of LH and FSH that induces the ovulation. What causes the surge?
E. There is a decrease of LH and FSH after ovulation. What causes it?
F. There is a decrease in E2 after ovulation. What causes it?
G. There is an increase of E2 and P4 a few days after the ovulation. What causes it?
H. There is a decrease of E3 and P4 at the end of menstrual cycle. What causes it?
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 rows correctly indicates the hormonal changes that occur during childbirth? Select one: a. Oxytocin Progesterone Prolactin Increases Increases Decreases b. Oxytocin Progesterone Prolactin Decreases Decreases Increases c. Oxytocin Progesterone Prolactin Decreases Increases Decreases d. Oxytocin Progesterone Prolactin Increases Decreases Increasesarrow_forwardWhich of the following rows correctly describes the hormone levels during ovulation? Select one: a. Hormone Level Hormone Level Estrogen High LH High b. Hormone Level Hormone Level FSH Low Estrogen Low c. Hormone Level Hormone Level Estrogen Low Progesterone Low d. Hormone Level Hormone Level Progesterone High FSH Higharrow_forwardPlasma concentrations of LH and FSH rise dramatically after menopause. This is because (select one) a. The negative feedback of gonadal steroids is no longer present b. Rising gonadotrophins maintains the fertility of older animals c. Fertility in older woman declines d. The pituitary becomes more efficient with agearrow_forward
- What is a potential consequence of embryonic exposure to endocrine-disrupting compounds that can bind to estrogen receptors? Select one: a. Increased growth rate and early birth b. Decrease in size of developing testes c. Increased rate of ovulation d. Decreased sperm count e. Choices B and D are correctarrow_forwardSerum estrogen concentration peaks at which of the following times during the menstrual cycle? a. At the beginning of endometrial proliferation b. Just after the onset of menses c. Just after ovulation d. Just prior to the increase in serum luteinizing and follicle-stimulating hormone concentrationsarrow_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_forward
- The tissue presented is at what phase of menstrual cycle and affected by what ovarian hormone? a. Secretory phase; progesterone b. Secretory phase; estrogen c. Proliferation phase; estrogen d. Proliferation phase; progesterone e. Secretory; progesterone and estrogen f. Proliferation phase; progesterone and estrogenarrow_forwardA woman taking birth control pills would be expected to have Select one: a. higher than normal FSH and LH levels due to fewer negative feedback messages being sent to the ovaries b. higher than nomal FSH and LH levels due to fewer negative feedback messages being sent to the pituitary gland c. lower than normal FSH and LH levels due to more negative feedback messages being sent to the pituitary gland d. lower than normal FSH and LH levels due to more negative feedback messages being sent to the ovariesarrow_forwardA woman taking birth control pills would be expected to have Select one: a. higher than normal FSH and LH levels due to fewer negative feedback messages being sent to the ovaries b. higher than normal FSH and LH levels due to fewer negative feedback messages being sent to the pituitary gland c. lower than normal FSH and LH levels due to more negative feedback messages being sent to the pituitary gland d. lower than normal FSH and LH levels due to more negative feedback messages being sent to the ovariesarrow_forward
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