Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Chapter 16, Problem 10TY
The most widely used hormonal methods of birth control:
a. prevent fertilization by killing sperm
b. prevent ovulation by inhibiting release of FSH and LH
c. prevent implantation into the endometrium
d. block transport of fertilized egg to uterus
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The most widely used hormonal methods of birth control: a. prevent fertilization by killing sperm b. prevent ovulation by inhibiting release of FSH and LH c. prevent implantation into the endometrium d. block transport of fertilized egg to uterus
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
A 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 ovaries
Chapter 16 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 16 - Prob. 1QCCh. 16 - Prob. 2QCCh. 16 -
3. Would you be willing to select an embryo to...Ch. 16 -
1. Name the three accessory glands of the male...Ch. 16 - Prob. 2CRCh. 16 - Explain where fertilization takes place in the...Ch. 16 - Describe the phases of the uterine cycle.Ch. 16 - Prob. 5CRCh. 16 - Prob. 6CRCh. 16 - Describe how IVF is done.
Ch. 16 - Prob. 8CRCh. 16 - Describe birth control options, and list those...Ch. 16 - Describe the various STDs of worldwide concern.Ch. 16 - Prob. 1TYCh. 16 - Prob. 2TYCh. 16 - Which of the following structures is correctly...Ch. 16 - Prob. 4TYCh. 16 - Which of the following would provide the most...Ch. 16 -
6. What is the role of the corpus luteum during...Ch. 16 - Which of the following lists the female...Ch. 16 - Prob. 8TYCh. 16 - Which two means of birth control are most similar...Ch. 16 -
10. The most widely used hormonal methods of...Ch. 16 - Prob. 11TYCh. 16 - Prob. 12TYCh. 16 - Prob. 13TYCh. 16 - Prob. 14TYCh. 16 - Prob. 15TYCh. 16 - Male sexual responsiveness and secondary sex...Ch. 16 - What keeps the ovarian and uterine cycles always...Ch. 16 - Prob. 3AWKCh. 16 - What provides the force that pushes the baby out...Ch. 16 - Both women and men can have an STD and not have...Ch. 16 - If a woman does not have an intact hymen does that...
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- A 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_forwardBirth control pills are oral contraceptives taken by women to prevent pregnancies. The most effective forms of birth control pills contain estrogen and a small amount of progestin (a synthetic hormone that mimics the effects of progesterone). The role of estrogen in the birth control pill is to Select one: a. negatively feedback to the anterior pituitary to suppress the production of GnRH b. reduce the progesterone levels in the blood to limit the endometrium buildup c. suppress the shedding of endometrium, thus preventing menstruation d. prevent a rise in the FSH and LH levels, thereby preventing follicle maturationarrow_forwardAt the end of the uterine cycle, there is a significant drop in the levels of LH, estrogen, and progesterone.This causes all of the following EXCEPT a. an increase in smooth muscle contractions of the uterus b. the maintenance of the corpus luteum to continue producing low levels of progesterone and estrogen c. the start of menstruation, which breaks down the blood vessels and tissues formed during the follicular stage d. a negative feedback loop to the pituitary to secrete more FSH and LHarrow_forward
- At the end of the uterine cycle, there is a significant drop in the levels of LH, estrogen, and progesterone.This causes all of the following EXCEPT Select one: a. an increase in smooth muscle contractions of the uterus b. the start of menstruation, which breaks down the blood vessels and tissues formed during the follicular stage c. the maintenance of the corpus luteum to continue producing low levels of progesterone and estrogen d. a negative feedback loop to the pituitary to secrete more FSH and LHarrow_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_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_forward
- How do tubal ligations and vasectomies prevent further pregnancies? Select one: a. The corpus luteum and the epididymis are suppressed using a chemical swab. The fertilized egg could no longer implant in the endometrium. b. The Fallopian tubes and vas deferens are cut and tied off, thereby preventing the movement of the eggs and sperm. c. The Fallopian tubes and the vas deferens are cut. Eggs and sperm can no longer be produced. d. The Fallopian tube and vas deferens are cut and tied off, thereby reducing needed reproductive hormone levels.arrow_forwardThe 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_forwardBirth control pills are oral contraceptives taken by women to prevent pregnancies. the most effective forms of birth control pills contain estrogen and a small amount of progestin ( a synthetic hormone that mimics the effect of progesterone). The role of estrogen in the birth control pills is to: Select one: A. reduce the progesterone levels in the blood to limit the endometrium. B. negatively feedback to the anterior pituitary to suppress the production of GnRH. C. suppress the shedding of the endometrium, thus preventing mestruation. D. prevent the rise in the FSH and LH levels, thereby preventing follicle's maturation.arrow_forward
- Identify 3 effects of progesterone on pregnancy. Select one or more: O a. This causes the uterus to remain contracted after delivery to reduce blood loss from the placental site O b. This is produced when the ovarian follicle that encloses the developing egg forms a structure called the corpus luteum O c. This decreases bladder tone leading to an increased risk of urinary infection O d. This prepares the body for pregnancy. It acts as an appetite stimulant Identify 1 effect of the hormone vasopressin in pregnancy. Select one: O a. This has an important compensatory mechanism for restoring blood pressure in hypovolaemic shock such as that which occurs during haemorrhage O b. Promotes the maintenance of the corpus luteum at the beginning of pregnancy O C. Involved in thickening of the endometrium and other aspects of regulating the menstrual cyclearrow_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_forwardWhich of the following statements does NOT describe the role of progesterone in the female reproductive system? Select one: a. Prevents smooth muscle contraction, thereby preventing premature birth b. Triggers the thickening of the endometrium c. Ensures that the endometrium is thick enough to support a fetilized egg d. Prevents the shedding of the endometriumarrow_forward
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