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
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 28, Problem 12RQ
What would happen if the trophoblast did not secrete hCG upon implantation of the blastocyst?
- Tire cells would not continue to divide.
- Tire corpus luteum would continue to produce progesterone and estrogen.
- Menses would flush the blastocyst out of the uterus.
- Tire uterine mucosa would not envelop the blastocyst.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
In menstruation, the functional layer is shed from the endometrium. Explain the hormonal and physical factors responsible for this shedding. (See Figure 25.19.)
Clomiphene Citrate is a fertility drug that stimulates hypothalamic secretion of Gonadotropin releasing Hormone (GnRH) in females and induces ovulation. Explain how increased GnRH with Clomiphene Citrate treatment would affect follicle maturation and ovulation in women (explain how increased GnRH would affect FSH, LH, Estrogen, and ovulation).
What is the outer layer (outer cell mass) of the blastocyst termed
Trophoblast
O Embryoblast
Epiblast
Hypoblast
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...
Additional Science Textbook Solutions
Find more solutions based on key concepts
How do you think a cell performing cellular respiration rids itself of the resulting CO2?
Campbell Biology in Focus (2nd Edition)
4. Three groups of nonvascular plants are _______, ______, and _______. Three groups of seedless vascular plant...
Biology: Life on Earth (11th Edition)
Match the following examples of mutagens. Column A Column B ___a. A mutagen that is incorporated into DNA in pl...
Microbiology: An Introduction
Describe two hypotheses that explain why species diversity is greater in tropical regions than in temperate and...
Campbell Biology (11th Edition)
4. How do gross anatomy and microscopic anatomy differ?
Human Anatomy & Physiology (2nd Edition)
5. A 65 kg gymnast wedges himself between two closely spaced vertical walls by pressing his hands and feet ag...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Implantation of a blastocyst does not always happen. Approximately how many days after fertilization may implantation of a blastocyst occur?arrow_forwardDescribe 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_forwardWhat is the fate of the inner cell mass? Which of the structures produces human chorionic gonodotropin (HCG)? What is the function of HCG? What would happen to the implanted blastocyst if HCG were not secreted?arrow_forward
- Which hormone is inhibited during pregnancy in order to prevent contractions of the uterus? Which two hormones promote thickening of the endometrium? Progesterone and estrog If GnRH production were blocked, what will happen? What would happen if testosterone levels get too high?arrow_forwardNormally deterioration of the endometrium begins when: blood levels of FSH increase blood levels of estrogen and progesterone decrease blood levels of estrogen and progesterone increase the corpus luteum secretes estrogenarrow_forwardWhen the fetus is fully developed and takes up the maximum amount of space in the uterus, the pressure that it inflicts upon the cervix activates stretch receptors to send a signal to the hypothalamus (a structure within the brain). The brain responds by producing oxytocin, which is then released by the pituitary gland (an endocrine organ in the brain). Oxytocin travels through the bloodstream; when it reaches the uterus, it signals through myometrial (uterine smooth muscle) oxytocin receptors. Activation of the oxytocin receptors on myometrial tissue causes a signaling cascade that results in the cell producing prostaglandins that facilitate myometrial contraction (Figure 2).. Contraction of myometrial tissue then reduces the intrauterine space, causing the fully developed fetus to inflict more pressure on the cervix, thus repeating this process until the fetus is delivered. a) Fetal delivery is an example of which type of feedback loop? b) What type of sensory receptor is the…arrow_forward
- In severe cases of endometriosis, endometrial tissue is found within the peritoneum. How can endometrial tissue from the uterus end up in the peritoneum?arrow_forwardJan has a history of miscarriage in the first trimester. Her physician thinks that her problem might be hormonal. What hormones could be implicated in failing to maintain the pregnancy during the first trimester?arrow_forwardGross Anatomy of the Human Male and Female Reproductive System a) What is the function of the stereocilia exhibited by the epithelial cells of the mucosa of the epididymis? b) Hysterectomy is a surgical removal of the uterus. It may or may not be accompanied by a salpingo-oophorectomy, removal of the uterine tubes and ovaries. Why would it be an advantage to leave the ovaries intact? c) What is the function of the cavernous bodies in the penis?arrow_forward
- Which of the following statements is TRUE about corpus luteum?arrow_forwardProgesterone, estrogen, prostaglandins, and oxytocin all have important roles that influence parturition. For each of thesubstances listed, describe whether it has a stimulatory or inhibitory effect on the uterus.arrow_forwardThe core of a chorionic villus of a placenta is occupied by foetal connective tissue known as whatarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY