SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 28, Problem 25RAC
Summary Introduction
Introduction:
Fertilization is the process in which the sperm cells penetrate the plasma membrane of secondary oocyte. This fusion results in the formation of a diploid zygote.
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After fertilization, the successful development of a mature, full-termfetus depends ona. the release of human chorionic gonadotropin (hCG) by the developing placenta.b. the production of estrogen and progesterone by the placental tissues.c. maintenance of the corpus luteum for all 9 months.d. Both a and b are correct.e. All of these are correct.
The onset of labor may be a result ofa. increased estrogen secretion by the placenta.b. increased glucocorticoid secretion by the fetus.c. increased secretion of oxytocin.d. stretch of the uterus.e. All of these are correct
When pregnancy occurs, the endometrium is maintained bya. the embryo releasing hCG.b. a decrease in levels of progesterone.c. the hypothalamus releasing GnRH.d. increasing levels of FSH
Chapter 28 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 28.1 - What are the functions of the reproductive system?Ch. 28.1 - What functions occur in both moles and females,...Ch. 28.2 - Describe the events of meiosis / and meiosis II....Ch. 28.2 - Prob. 4AYPCh. 28.2 - Prob. 5AYPCh. 28.3 - Prob. 6AYPCh. 28.3 - Describe the structure of the scrotum.Ch. 28.3 - Prob. 8AYPCh. 28.3 - Locate the boundaries of the perineum and the two...Ch. 28.3 - Prob. 10AYP
Ch. 28.3 - Whereare the seminiferous tubules and interstitial...Ch. 28.3 - Prob. 12AYPCh. 28.3 - Prob. 13AYPCh. 28.3 - Prob. 14AYPCh. 28.3 - Prob. 15AYPCh. 28.3 - Prob. 16AYPCh. 28.3 - Where, specifically, are sperm cells produced in...Ch. 28.3 - Prob. 18AYPCh. 28.3 - Prob. 19AYPCh. 28.3 - Prob. 20AYPCh. 28.3 - Prob. 21AYPCh. 28.3 - Prob. 22AYPCh. 28.3 - Prob. 23AYPCh. 28.3 - Prob. 24AYPCh. 28.3 - Prob. 25AYPCh. 28.3 - Prob. 26AYPCh. 28.3 - Prob. 27AYPCh. 28.3 - Describe the structures and locations of the glans...Ch. 28.3 - Prob. 29AYPCh. 28.3 - Prob. 30AYPCh. 28.3 - Prob. 31AYPCh. 28.3 - Prob. 32AYPCh. 28.4 - Where are GnRH, LH, FSH, and inhibin produced?...Ch. 28.4 - Prob. 34AYPCh. 28.4 - Explain the regulation of testosterone secretion.Ch. 28.4 - Prob. 36AYPCh. 28.4 - Prob. 37AYPCh. 28.4 - Prob. 38AYPCh. 28.4 - Describe the processes of erection, emission,...Ch. 28.5 - Prob. 40AYPCh. 28.5 - Prob. 41AYPCh. 28.5 - Prob. 42AYPCh. 28.5 - Prob. 43AYPCh. 28.5 - Prob. 44AYPCh. 28.5 - Prob. 45AYPCh. 28.5 - Describe the process of ovulation.Ch. 28.5 - What is the corpus luteum? What happens to it if...Ch. 28.5 - Prob. 48AYPCh. 28.5 - How are the uterine tubes involved in moving the...Ch. 28.5 - Prob. 50AYPCh. 28.5 - Describe the major ligaments holding the uterus in...Ch. 28.5 - Prob. 52AYPCh. 28.5 - Prob. 53AYPCh. 28.5 - Describe the layers of the vaginal wall. What are...Ch. 28.5 - Prob. 55AYPCh. 28.5 - Prob. 56AYPCh. 28.5 - Prob. 57AYPCh. 28.5 - What is the function of the clitoris and bulb of...Ch. 28.5 - Prob. 59AYPCh. 28.5 - Where are the greater and lesser vestibular glands...Ch. 28.5 - Prob. 61AYPCh. 28.5 - Prob. 62AYPCh. 28.5 - Prob. 63AYPCh. 28.5 - Prob. 64AYPCh. 28.6 - Prob. 65AYPCh. 28.6 - Prob. 66AYPCh. 28.6 - What are the major phases of the ovarian cycle?...Ch. 28.6 - Prob. 68AYPCh. 28.6 - Prob. 69AYPCh. 28.6 - Prob. 70AYPCh. 28.6 - Prob. 71AYPCh. 28.6 - Where is hCG produced, and what effect does it...Ch. 28.6 - Whatare the phases of the uterine cycle?Ch. 28.6 - Prob. 74AYPCh. 28.6 - Prob. 75AYPCh. 28.6 - Prob. 76AYPCh. 28.6 - Prob. 77AYPCh. 28.6 - Prob. 78AYPCh. 28.6 - Prob. 79AYPCh. 28.6 - Prob. 80AYPCh. 28.6 - Prob. 81AYPCh. 28.6 - Prob. 82AYPCh. 28.6 - What causes the changes that lead to menopause?Ch. 28.7 - Prob. 84AYPCh. 28.7 - Prob. 85AYPCh. 28.7 - Prob. 86AYPCh. 28.7 - Prob. 87AYPCh. 28 - During meiosis I Homologous chromosomes synapse....Ch. 28 - Prob. 2RACCh. 28 - Prob. 3RACCh. 28 - The site of spermatogenesis in the male is the a....Ch. 28 - Prob. 5RACCh. 28 - Prob. 6RACCh. 28 - Concerning the penis. the membranous urethra...Ch. 28 - Prob. 8RACCh. 28 - Prob. 9RACCh. 28 - Prob. 10RACCh. 28 - In the male, before puberty a. FSH levels are...Ch. 28 - Prob. 12RACCh. 28 - Prob. 13RACCh. 28 - Prob. 14RACCh. 28 - Prob. 15RACCh. 28 - Prob. 16RACCh. 28 - Prob. 17RACCh. 28 - During sexual excitement, which of these...Ch. 28 - Prob. 19RACCh. 28 - Prob. 20RACCh. 28 - Prob. 21RACCh. 28 - Which of these processes or phases in the monthly...Ch. 28 - Prob. 23RACCh. 28 - Prob. 24RACCh. 28 - Prob. 25RACCh. 28 - Prob. 26RACCh. 28 - Prob. 27RACCh. 28 - If an adult male were castrated (testes were...Ch. 28 - Prob. 2CTCh. 28 - Prob. 3CTCh. 28 - Prob. 4CTCh. 28 - If the ovaries are removed from a 20-year-old...Ch. 28 - Prob. 6CTCh. 28 - Prob. 7CTCh. 28 - GnRH can be used to treat some females who want to...Ch. 28 - Prob. 9CTCh. 28 - Prob. 10CTCh. 28 - Prob. 11CT
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- Nutrient and waste requirements for the developing fetus are handled during the first few weeks by _____. a. the placenta b. diffusion through the endometrium c. the chorion d. the blastocystarrow_forwardDuring the first trimester, hCG produced from the chorion maintains the corpus luteum. What is the purpose of maintaining the corpus luteum? Select one: a. The corpus luteum produces relaxin, which thickens the endometrium. b. The corpus luteum ensures that the endometrium does not break down during the first trimester. c. The corpus luteum supports the formation of the placenta. d. The chorion forms the fetal part of the placenta, and the corpus luteum supports the maternal part of the placenta.arrow_forwardWhich 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 levelsarrow_forward
- What is true of the development of the female reproductive system? A. It is regulated by the hypothalamus-pituitary-gonadal axisB. It starts with the GnRH released by the anterior pituitary glandC. FSH is needed to develop the uterus.D. The stimulus for FSH release by the hypothalamus is the GnRH release from the pituitary gland.E. None of the choicesarrow_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_forwardDuring 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_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 statements does NOT correctly describe the events following fertilization? Select one: a. Only the inner cell mass cells in a blastocyst are pluripotent. b. The trophoblast has an important role in maintaining the pregnancy, as it prevents the endometrium from shedding. c. As hCG takes over maintaining the endometrium immediately after implantation, the corpus luteum degenerates into the corpus albican. d. All 16 cells in a morula are truly totipotent, meaning that they can become any cells in the human body.arrow_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
- Months pass as Ashley has an uneventful pregnancy. Eventually, Ashley goes into labor and arrives at the hospital to give birth. As Ashley progresses through the first stage of labor, all of the following occur except a. the fetus’s head pushes against the cervix, promoting the cervical dilation. b. oxytocin levels decrease as labor progresses. c. the amniotic sac may rupture. d. contractions become more frequent and more intense.arrow_forwardWhich of the following statements about the menstrual cycle is false? a. Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. b. Menstruation occurs just after LH and FSH levels peak. c. Menstruation occurs after progesterone levels drop. d. Estrogen levels rise before ovulation, while progesterone levels rise after.arrow_forwardWhich of the following statements about oocytes and ovulation is correct? a. The production of primary oocytes continues in women from the onset of puberty until the onset of menopause. b. Meiotic divisions are complete at the time of ovulation. c. At ovulation, the structure released from the follicle includes a secondary oocyte and polar body. d. All of these statements are correctarrow_forward
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