EP HUMAN BIOLOGY-MODIFIED MASTERING
8th Edition
ISBN: 9780134326436
Author: Johnson
Publisher: PEARSON CO
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Textbook Question
Chapter 16, Problem 2AWK
What keeps the ovarian and uterine cycles always exactly in phase with each other, even though the length of the menstrual cycle can vary slightly?
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Which of the following statements about the Female Reproductive System is TRUE?
Select one:
A) Follicles are located in the ovarian cortex, which has a rich supply of blood vessels and nerve fibres.
B) The female gonads secrete progesterone, estrogen, and oxytocin.
C) Connective tissue makes up the walls of the ovaries, uterus, and vagi na – whereas epithelial tissue lines the inner sides of the uterus, Fallopian tubes, and vagina.
D) Microbial growth is deterred by the non-acidic environment of the vagi na.
E) Each ovary is held in place within the abdominopelvic cavity by three ligaments – the broad, suspensory, and uterine ligaments.
If the ovum is not fertilized, the corpus luteum regresses, and the endometrium sloughs off to result in the first day of menstrual bleeding. The latter event would be duplicated, even if fertilization occurred, if receptors for which of the following hormones were occupied by an antagonist?
A) Dehydroepiandrosterone
B) Estradiol
C ) Estriol
D) Estrone
E) Progesterone
Chapter 16 Solutions
EP HUMAN BIOLOGY-MODIFIED MASTERING
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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- In menstruation, the functional layer is shed from the endometrium. Explain the hormonal and physical factors responsible for this shedding. (See Figure 25.19.)arrow_forwardWhat uterine events are occurring when primary follicles are maturing during the follicular phase of ovarian cycle? What is the dominant ovarian hormone during: i. The follicular phase of the ovarian cycle? ii. The luteal phase of the ovarian cycle?arrow_forwardWhat makes progesterone (purple line) rise during the second half of the menstrual cycle, and what makes it fall at the end of the cycle? (Hint: Where is this progesterone coming from?)arrow_forward
- Shedding of the functional layer of the endometrium also known as menstruation occurs when a) the concentration of LH in the blood peaks b ) the corpus luteum degenerates and turns into corpus albican c ) blood level of progesterone from the corpus luteum increases e ) blood level of FSH falls offarrow_forwardWhat happens to the endometrium during the proliferative phase of the menstrual cycle?arrow_forwardWhat effect would a continuous supply of exogenous estrogen or progesterone have on an adult female human? Will it: A) Cause no oocyte maturation B) Have more frequent ovulation C) Contain a stronger surge in LH production at mid-cycle D) Ovulation of multiple oocytes per cycle E) High, steady FSH productionarrow_forward
- What is the correct sequence of events in the development of ovarian follicles? * Primary Oocyte, secondary oocyte, tertiary oocyte, Mature oocyte, Corpus Luteum Primordial follicle, secondary follicle, tertiary follicle, Graafian follicle, Corpus Luteum Primary follicle, primary oocyte, secondary oocyte, Mature oocyte, Corpus Luteum Primordial follicle, primary follicle, secondary follicle, Graafian follicle, Corpus Luteum Primary Oocyte, primary follicle, secondary follicle, Graafian follicle, Corpus Luteumarrow_forwardWhy Does Menstruation Occrur?arrow_forwardWhich of the following is NOT TRUE? A) Menopause is marked by elevated levels of gonadotropins. A spermatozoon can survive for more than five days in a female reproductive tract. C) The proliferative endometrial phase is promoted by progesterone. Synthetic estrogens act as contraceptives by preventing the ovarian luteal phase. The hormonal basis of stress-induced amenorrhea is due to the influence of the limbic system on GNRH secretion.arrow_forward
- Why does the body temperature increase during the second half of the menstrual cycle?arrow_forwardWhat are the organizing effects of sex hormones? Compare the negative feedback loops in the male reproductive system with those of the female’s reproductive cycle. Describe an example of positive feedback involving estrogen that leads to ovulation. What are the hormonal changes during the luteal phase of the menstrual cycle?arrow_forwardWhy do anovulatory cycles lead to dysfunctional uterine bleeding?arrow_forward
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