Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
expand_more
expand_more
format_list_bulleted
Question
Chapter 43, Problem 8RQ
Summary Introduction
To explain:
The way, in which, the structure of the placenta prevents the mixing of fetal and maternal blood while allowing for the exchange of substances between the mother and fetus.
Introduction:
The placenta is an organ that supplies blood and nutrients to the various layers of the fertilized egg inside the uterus lining. It contains umbilical cord which provides food, nutrition, and gases to the various regions inside the embryo.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Explain how the structure of the placenta prevents mixing of fetal and maternal blood while allowing for the exchange of substances between the mother and the fetus.
Describe the structure of the placenta and the pathways for exchange between maternal and fetal blood?
Explain the function of the placenta.
Chapter 43 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 43.1 - define development and describe how cell division...Ch. 43.2 - Prob. 1CYLCh. 43.3 - describe early development in amphibians,...Ch. 43.3 - Prob. 2CYLCh. 43.4 - Prob. 1TCCh. 43.4 - Prob. 2TCCh. 43.4 - Does the development of a human limb, and the rest...Ch. 43.4 - Prob. 1CYLCh. 43.4 - Prob. 2CYLCh. 43.5 - Prob. 1TC
Ch. 43.5 - Prob. 1CSCCh. 43.5 - Prob. 2TCCh. 43.5 - Prob. 3TCCh. 43.5 - Prob. 1HYEWCh. 43.5 - describe human embryonic development from...Ch. 43.5 - describe the structure and function of the...Ch. 43.5 - Prob. 3CYLCh. 43.6 - Prob. 1TCCh. 43.6 - Prob. 1CYLCh. 43.6 - Prob. 2CYLCh. 43.6 - Prob. 3CYLCh. 43.6 - Prob. 2TCCh. 43 - Prob. 1MCCh. 43 - Animals with Indirect development a. develop...Ch. 43 - Prob. 3MCCh. 43 - Prob. 4MCCh. 43 - Prob. 5MCCh. 43 - Prob. 6MCCh. 43 - Prob. 7MCCh. 43 - Prob. 8MCCh. 43 - Prob. 1FIBCh. 43 - Prob. 2FIBCh. 43 - Prob. 3FIBCh. 43 - Prob. 4FIBCh. 43 - Distinguish between direct and indirect...Ch. 43 - Describe the structure and function of the four...Ch. 43 - What is gastrulation? Describe gastrulation in...Ch. 43 - Prob. 4RQCh. 43 - Prob. 5RQCh. 43 - In humans, where does fertilization occur, and...Ch. 43 - Prob. 7RQCh. 43 - Prob. 8RQCh. 43 - How do changes in the breast prepare a mother to...Ch. 43 - Prob. 10RQCh. 43 - Prob. 1ACCh. 43 - Prob. 2AC
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
- Describe the functions performed by the placenta for the developing embryo, and in each case, explain the mechanism that allows it to perform such function.arrow_forwardDescribe how the following components relate to the placenta: umbilical arteriescotyledons, fetal vessels,chorionic villi, intervillous space, spiral arterioles, and umbilical vein?arrow_forwardExplain why it is so important that the blood of mother and offspring do not mix together in the placenta. List the structural features of the placenta that contribute to efficient exchange and explain why each is important.arrow_forward
- Explain the organization of the extraembryonic membranes.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_forwardPlacental tissue may consume as much as 80% of the glucose that moves from parental circulation into the intervillous space. How does placental consumption of glucose impact the glucose concentration gradient between the intervillous space and parental circulation? In other words, does the intervillous space or the parental circulation contain a higher concentration of glucose?arrow_forward
- Describe the respiratory events that occur as the newborn adjusts to life outside of the uterus.arrow_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_forwardDescribe the physiological changes that occur in a pregnantwoman’s circulatory system.arrow_forward
- During pregnancy, the fetal circulatory system works differently than after birth. Answer the following questions: What are the fetal blood vessels that underwent transformation as a result of transition from a fetus to a newborn? What are the underlying reasons behind these changes? Give examples of diseases resulting from failure of these changes to develop normally.arrow_forwardHow can the decisions women make during pregnancy impact the health of their developing offspring? Identify the structure responsible for the passage of materials between mother and child during pregnancy and the process for how this exchange takes place.arrow_forwardThe Food and Nutrition Board of the Institute of Medicine recommends that all women who might become pregnant consume at least 400 µg/day of folate from supplements or fortified foods. Why? Why would a premature infant require supplemental oxygen? Describe how the newborn's first breath alters the circulatory pattern?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY