BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 30, Problem 10WIO
Summary Introduction
To determine:
The adaptation of pre-embryo in the maintenance of corpus luteum.
Introduction:
Corpus luteum is a mass of cell formed after ovulation. Ovulation is the release of an egg from the ovary. Increase in the level of the hormone estrogen and luteinizing hormone (LH) helps in ovulation. Hormones involved in ovulation are luteinizing hormone, follicle stimulating hormone, estrogen, and progesterone.
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Chapter 30 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 30.1 - Prob. 1MCCh. 30.1 - How is internal fertilization different from...Ch. 30.1 - Prob. 3MCCh. 30.1 - Prob. 4MCCh. 30.2 - What are the relationships among gonads, germ...Ch. 30.2 - Prob. 2MCCh. 30.2 - Prob. 3MCCh. 30.2 - Prob. 4MCCh. 30.2 - Prob. 5MCCh. 30.2 - Prob. 6MC
Ch. 30.3 - Prob. 1MCCh. 30.3 - Where do egg cells develop?Ch. 30.3 - What are the stages of oogenesis?Ch. 30.3 - Prob. 4MCCh. 30.3 - Prob. 5MCCh. 30.3 - Prob. 6MCCh. 30.4 - Describe how three birth control methods work.Ch. 30.4 - Prob. 2MCCh. 30.4 - Describe two reasons that a symptomless STI can be...Ch. 30.5 - Prob. 1MCCh. 30.5 - Prob. 2MCCh. 30.5 - Prob. 3MCCh. 30.5 - Prob. 4MCCh. 30.5 - Prob. 5MCCh. 30.5 - Prob. 6MCCh. 30.5 - Prob. 7MCCh. 30 - Unchanging environments are advantageous to...Ch. 30 - Prob. 2MCQCh. 30 - Prob. 3MCQCh. 30 - Prob. 4MCQCh. 30 - Prob. 5MCQCh. 30 - Prob. 6MCQCh. 30 - Prob. 7MCQCh. 30 - Prob. 8MCQCh. 30 - The umbilical cords function is to a. Transport...Ch. 30 - Prob. 10MCQCh. 30 - Prob. 1WIOCh. 30 - Prob. 2WIOCh. 30 - Prob. 3WIOCh. 30 - Prob. 4WIOCh. 30 - Prob. 5WIOCh. 30 - Prob. 6WIOCh. 30 - Prob. 7WIOCh. 30 - Prob. 8WIOCh. 30 - Prob. 9WIOCh. 30 - Prob. 10WIOCh. 30 - Prob. 11WIOCh. 30 - Prob. 12WIOCh. 30 - Prob. 13WIOCh. 30 - Prob. 14WIOCh. 30 - Prob. 15WIOCh. 30 - Prob. 16WIOCh. 30 - Prob. 17WIOCh. 30 - Some newborn mammals can walk and carry out other...Ch. 30 - Prob. 19WIOCh. 30 - Prob. 1SLCh. 30 - Review Why We Care 30.1 What kinds of studies and...Ch. 30 - Prob. 1PITCh. 30 - Prob. 2PITCh. 30 - Prob. 3PIT
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- If an intact rat was injected with testosterone over several weeks, why would his prostate increase in size but his testes decrease in size? What would you expect to happen to his circulating levels of LH? What about his circulating levels of GnRH?arrow_forwardIf fertilization occurs, the corpus luteum continues to produce hormones under the direction of Human Chorionic Gonadotrophin (HCG), which is produced by the embryo. By the third month, what begins to produce estradiol and progesterone?arrow_forwardIn ovary which structure transforms as corpus luteum and name the hormonesecreted by corpus luteum?arrow_forward
- Reproductive physiology (human) a) At the time of ovulation, the released ovum (egg) has completed both meiosis I and meiosis II. b) Because the corpus luteum (CL) is rescued from atresia by hCG early in pregnancy, the CL continues to produce progesterone throughout the 9 months of a normal pregnancy. c) Late in the follicular phase, estrogen participates in a positive feedback loop that leads to a surge in luteinizing hormone and ovulation. d) Both (a) and (b) are correct and (c) is incorrect e) Statements (a), (b) and (c) are all correctarrow_forwardDescribe the function of each of the following hormones in the uterine and ovarian cycles: GnRH, FSH, LH, estrogens, progesterone, and inhibin.arrow_forwardHow do follicles influence FSH and LH levels at the end of the follicular phase, right before ovulation? Follicles release high quantities of estrogen, which result in a large increase in LH and a small increase in FSH O Follicles release high quantities of progesterone, which result in a large increase in LH and a small increase in FSH O Follicles release low quantities of estrogen, whch result in a large increase in LH O Follicles release low quantities of progesterone, which result in a large increase in LH and a small increase in FSHarrow_forward
- In male fetuses, testosterone is converted into ___ Which is required for genitalia to develop into a penis and scrotum. Complications in the activity of this hormone can disrupt the development of external sex organs in male fetuses, and can produce intersex variations. A) estradiol B) dihydrotestosterone C) Müllerian inhibiting hormone D) luteinizing hormonearrow_forwardDescribe the development of an oocyte from primordial follicle to when it is released at ovulation. How do hormones contribute to this progression? Describe the development of a spermatogonia to a spermatozoa. How do hormones contribute to this progression? What is the function of Sertoli and Leydig cells?arrow_forwardOogenesis in the female results in one functional gamete—the egg, or ovum. What other cells are produced? What is the significance of this rather wasteful type of gamete production—that is, production of a single functional gamete instead of four, as seen in males?arrow_forward
- Many hormones, including FSH, LH, progesterone, and estrogen are controlled through a negative feedback system. Although higher levels of estrogen in the follicular stage suppress the secretion of FSH and LH in the anterior pituitary, there is an LH spike at day 14 (ovulation).Can you provide an explanation as to why an LH/FSH spike may occur using the estrogen feedback loop?arrow_forwardDescribe how the hypothalamic-pituitary-gonadal axis regulates gamete production in males and females. Give the hormones from each gland that are secreted in this process.arrow_forwardWhat means to retain the ability to become any cell type—including germ-line cells and gametes—when exposed to the appropriate signals in a developing embryo?arrow_forward
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