Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
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Textbook Question
Chapter 28, Problem 6RC
Describe the effects of human chorionic
gonadotropin. Where and when is it produced?
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State the production sites and pregnancy-related functions of human chorionic gonadotropin, progesterone, estrogens, and relaxin.
Define about the human chorionic gonadotropin (HCG) ?
hCG, estrogen and progesterone are hormones that are secreted throughout pregnancy. Answer the following questions about these hormones.
1) What structure initially secretes estrogen & progesterone? 2)What structure takes over the role of secreting hCG, estrogen & progesterone in the second and third trimesters?
Chapter 28 Solutions
Human Anatomy (9th Edition)
Ch. 28 - Match each numbered item with the most closely...Ch. 28 - Prob. 2RFTCh. 28 - Prob. 3RFTCh. 28 - Prob. 4RFTCh. 28 - Prob. 5RFTCh. 28 - Prob. 6RFTCh. 28 - Prob. 7RFTCh. 28 - Prob. 8RFTCh. 28 - Match each numbered item with the most closely...Ch. 28 - Prob. 10RFT
Ch. 28 - Identify the two extra-embryonic membranes and the...Ch. 28 - Prob. 12RFTCh. 28 - Prob. 13RFTCh. 28 - Prob. 14RFTCh. 28 - 15. A blastocyst is a(n)
(a) extra-embryonic...Ch. 28 - During the second trimester, the most significant...Ch. 28 - Prob. 17RFTCh. 28 - Prob. 18RFTCh. 28 - The extra-embryonic membrane that forms the...Ch. 28 - During implantation, the (a) syncytiotrophoblast...Ch. 28 - 1. What would be the fate of an embryo if the...Ch. 28 - Prob. 2RCCh. 28 - 3. The stage of development that follows cleavage...Ch. 28 - Prob. 4RCCh. 28 - Prob. 5RCCh. 28 - Describe the effects of human chorionic...Ch. 28 - 7. What occurs during amphimixis?
Ch. 28 - Prob. 8RCCh. 28 - Prob. 9RCCh. 28 - Prob. 10RCCh. 28 - 1. Joe and Jane desperately want to have children,...Ch. 28 - 2. The virus that causes rubella, or "German...
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- What is the state of gonadotropin secretion during pregnancy,and what is the cause?arrow_forwardWhat would happen if human chorionic gonadotropin levels did not rise adequately during pregnancy?arrow_forwardWomen with inadequate secretion of GnRH are often treated for their infertility with drugs that mimic the action of this hormone. Can you suggest a possible reason that such treatment is often associated with multiple births?arrow_forward
- List the major placental hormones and their primary roles in pregnancy. What is the primary basis for maternal pituitary enlargement during pregnancy?arrow_forwardDiscuss the critical effects of estrogen and progesterone during pregnancy.arrow_forwardDescribe the most significant hormones responsible for sex differentiation. List the most important hormones during puberty. Describe the significance of hormonal regulation during pregnancy and present the changes in hormonal balance during menopause.arrow_forward
- Describe 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_forwardhCG, estrogen and progesterone are hormones that are secreted throughout pregnancy. Answer the following questions about these hormones.1) Identify the structure that initially secretes hCG 2) Describe the function of hCG and identify the trimester where the hCG level is the highest 3) What are the roles of estrogen & progesterone in pregnancy 4) What structure initially secretes estrogen & progesterone? 5) What structure takes over the role of secreting hCG, estrogen & progesterone in the second and third trimesters?arrow_forwardDescribe the role of progesterone in early pregnancy.arrow_forward
- Describe the development of reproductive organs in a fetus of each gender. Which genes, gene products, and hormones are involved in the sex differences? Which sex- related hormones are circulating in high concentrations in a pregnant woman compared to a nonpregnant woman? Do these hormones cross the placenta (if you are uncertain, consider hormone chemical class relative to membrane permeability to make an educated guess)? Assuming these hormones do cross the placenta, how do they affect the hormonal environment inside the fetus, and how does this relate to fetal reproductive development?arrow_forwardDescribe the process of oogenesis Describe the hormonal control of oogenesis including the hypothalamic-pituitary-gonadal axis (which in this case is the hypothalamic-pituitary-ovarian axis). Describe the components of the ovarian and menstrual cycles. Describe methods of contraception and how they work.arrow_forwardExplain the organizational effects of androgens on the developing fetus.arrow_forward
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Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY