Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 28, Problem 18RQ
Progesterone secreted by the placenta suppresses ________ to prevent maturation of ovarian follicles.
- LH and estrogen
- hCG and FSH
- FSH and LH
- estrogen and hCG
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Chapter 28 Solutions
Anatomy & Physiology
Ch. 28 - View this time-lapse movie...Ch. 28 - Visit this site...Ch. 28 - Sperm and ova are similar in terms of ________....Ch. 28 - Although the male ejaculate contains hundreds of...Ch. 28 - As sperm first reach the oocyte, they will contact...Ch. 28 - Fusion of pronuclei occurs during ________....Ch. 28 - Sperm must first complete ________ to enable the...Ch. 28 - Cleavage produces daughter cells called ________....Ch. 28 - The conceptus, upon reaching the uterus, first...Ch. 28 - The inner cell mass of the blastocyst is destined...
Ch. 28 - Which primary germ layer gave rise to the cells...Ch. 28 - What would happen if the trophoblast did not...Ch. 28 - During what process does the amnion envelop the...Ch. 28 - The placenta is formed from ________. the embryos...Ch. 28 - The foramen ovale causes the fetal circulatory...Ch. 28 - What happens to the urine excreted by the fetus...Ch. 28 - During weeks 9–12 of fetal development,...Ch. 28 - Progesterone secreted by the placenta suppresses...Ch. 28 - Which of the following is a possible culprit of...Ch. 28 - How does the decrease in progesterone at the last...Ch. 28 - Which of these fetal presentations is the easiest...Ch. 28 - Which of these shunts exists between the right and...Ch. 28 - Why is brown fat important? It is the newborns...Ch. 28 - Constriction of umbilical blood vessels during...Ch. 28 - Alveoli are connected to the lactiferous sinuses...Ch. 28 - How is colostrum most important to a newborn? It...Ch. 28 - Mature breast milk ________. has more sodium than...Ch. 28 - Marfan syndrome is inherited in an autosomal...Ch. 28 - In addition to codominance, the ABO blood group...Ch. 28 - Zoe has cystic fibrosis. Which of the following is...Ch. 28 - Darcy and Raul are having difficulty conceiving a...Ch. 28 - Sherrise is a sexually active college student. On...Ch. 28 - Approximately 3 weeks after her last menstrual...Ch. 28 - The Food and Nutrition Board of the Institute of...Ch. 28 - What is the physiological benefit of incorporating...Ch. 28 - Why would a premature infant requite supplemental...Ch. 28 - Devin is 35 weeks pregnant with her first child...Ch. 28 - Janine is 41 weeks pregnant with her first child...Ch. 28 - Describe how the newborns fust breath alters the...Ch. 28 - Newborns are at much higher risk for dehydration...Ch. 28 - Describe the transit of breast milk from...Ch. 28 - A woman who stopped breastfeeding suddenly is...Ch. 28 - Explain why it was essential that Mendel perform...Ch. 28 - How can a female carrier of an X-linked recessive...
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- The secretion of _____ controls the formation of sperm. a. testosterone b. LH c. FSH d. all of the abovearrow_forwardFigure 18.17 Which of the following statements about hormone regulation of the female reproductive cycle is false? a. LH and FSH are produced in the pituitary, and estrogen and progesterone are produced in the ovaries. b. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. c. Both progesterone and estrogen are produced by the follicles. d. Secretion of GnRH by the hypothalamus is inhibited by low levels of estrogen but stimulated by high levels of estrogen.arrow_forwardDuring the menstrual cycle, a midcycle surge of _____ triggers ovulation. a. estrogen b. progesterone c. LH d. FSHarrow_forward
- Figure 43.15 Which of the following statements about hormone regulation of the female reproductive cycle is false? LH and FSH are produced in the pituitary, and estradiol and progesterone are produced in the ovaries. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. Both progesterone and estradiol are produced by the follicles. Secretion of GnRH by the hypothalamus is inhibited by low levels of estradiol but stimulated by high levels of estradiol.arrow_forwardMatch each hormone with its effect. oxytocin a. growth of facial hair testosterone b. uterus contracts LH c. LH, FSH are released GnRH d. surge causes ovulation FSH e. follicle develops HCG f. milk is produced prolactin g. corpus luteum is maintainedarrow_forwardIn females the shedding of the uterine lining (a menstrual period) is stimulated by _________. an increase in progesterone and estrogen levels in the blood a decrease in progesterone and estrogen levels in the blood release of the follicle from the ovary the arrival of the egg in the uterusarrow_forward
- All germ cells beginning with the ______are genetically different from the rest of thebody cells and therefore must be protectedby the blood–testis barrier.arrow_forwardMucus plug is formed in cervix during pregnancy under the influence of hormone Estrogen Progesterone LH Estrogen and progesteronearrow_forwardOocytes develop in a multicellular structure, the follicle. After ovulation, most of the follicle cells remain in the ovary, forming a temporary endocrine gland, the_______. This gland disintegrates about 10 days afterovulation unless stimulated by a hormone,_______ ,secreted by the developing embryo.arrow_forward
- estion In polycystic ovarian syndrome, androgens can be produced in excess. What effects would this potentially have? C Menstrual irregularity Acne hirsutism (hair on face and abdomen) all of these MacBook Pro Search or type URL +arrow_forwardSherrise is a sexually active college student. OnSaturday night, she has unprotected sex with her boyfriend.On Tuesday morning, she experiences the twinge of midcyclepain that she typically feels when she is ovulating.This makes Sherrise extremely anxious that she might soonlearn she is pregnant. Is Sherrise’s concern valid? Why orwhy not?arrow_forwardAfter ovulation, the mature follicles collapses, taking on a yellowish appearance to become the _________. Corona radiata Graafian follicle Corpus luteum Zona pellucida Degenerating folliclearrow_forward
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