Anatomy & Physiology
3rd Edition
ISBN: 9781259398629
Author: McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher: Mcgraw Hill Education,
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Textbook Question
Chapter 29, Problem 13DYB
Explain why teratogens are especially harmful to the developing organism during the embryonic period. What events occur during this period?
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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.
Chapter 29 Solutions
Anatomy & Physiology
Ch. 29.1 - Prob. 1LOCh. 29.1 - What distinguishes the pre-embryonic period from...Ch. 29.2 - Prob. 2LOCh. 29.2 - Prob. 3LOCh. 29.2 - Prob. 1WDTCh. 29.2 - Prob. 2WDLCh. 29.2 - Prob. 3WDLCh. 29.2 - Prob. 4LOCh. 29.2 - Prob. 5LOCh. 29.2 - How many cells are present initially in the...
Ch. 29.2 - Prob. 5WDLCh. 29.2 - Prob. 6LOCh. 29.2 - Prob. 7LOCh. 29.2 - Prob. 6WDLCh. 29.2 - Prob. 7WDLCh. 29.2 - Prob. 8LOCh. 29.2 - Prob. 9LOCh. 29.2 - What are the two cell layers of the bilaminar...Ch. 29.2 - Which cell layers give rise to each of the three...Ch. 29.2 - Prob. 10LOCh. 29.2 - Prob. 11LOCh. 29.2 - Prob. 10WDLCh. 29.3 - Prob. 12LOCh. 29.3 - Prob. 13LOCh. 29.3 - Prob. 11WDLCh. 29.3 - Prob. 14LOCh. 29.3 - Prob. 15LOCh. 29.3 - Prob. 12WDLCh. 29.3 - Prob. 13WDLCh. 29.3 - LEARNING OBJECTIVE
16. Define organogenesis and...Ch. 29.3 - Why is it important for a pregnant woman to...Ch. 29.4 - LEARNING OBJECTIVE
17. Describe the major events...Ch. 29.4 - Prob. 15WDLCh. 29.5 - LEARNING OBJECTIVE
18. Compare and contrast the...Ch. 29.5 - WHAT DID YOU LEARN?
16 What are some of the...Ch. 29.5 - LEARNING OBJECTIVE
19. Discuss the critical...Ch. 29.5 - Prob. 20LOCh. 29.5 - How do estrogen and progesterone act to sustain...Ch. 29.5 - What are the actions of CRH, HPL, oxytocin, and...Ch. 29.5 - Prob. 21LOCh. 29.5 - Prob. 22LOCh. 29.5 - Prob. 2WDTCh. 29.5 - Prob. 19WDLCh. 29.5 - Prob. 20WDLCh. 29.5 - Prob. 23LOCh. 29.5 - Prob. 24LOCh. 29.5 - Prob. 21WDLCh. 29.5 - Prob. 22WDLCh. 29.5 - Prob. 25LOCh. 29.5 - Prob. 26LOCh. 29.5 - Prob. 23WDLCh. 29.5 - Prob. 24WDLCh. 29.5 - Prob. 27LOCh. 29.5 - Prob. 25WDLCh. 29.6 - LEARNING OBJECTIVE
28. Explain the physiologic...Ch. 29.6 - How do progesterone, estrogen, and oxytocin...Ch. 29.6 - LEARNING OBJECTIVE
29. List the signs and...Ch. 29.6 - Prob. 27WDLCh. 29.6 - LEARNING OBJECTIVE
30. Explain the signs and...Ch. 29.6 - LEARNING OBJECTIVE
31. Describe the positive...Ch. 29.6 - Prob. 28WDLCh. 29.6 - Prob. 29WDLCh. 29.6 - Prob. 32LOCh. 29.6 - Prob. 30WDLCh. 29.6 - Prob. 31WDLCh. 29.7 - Prob. 33LOCh. 29.7 - Prob. 34LOCh. 29.7 - Prob. 3WDTCh. 29.7 - Prob. 32WDLCh. 29.7 - Prob. 33WDLCh. 29.8 - Prob. 35LOCh. 29.8 - Prob. 34WDLCh. 29.8 - Prob. 36LOCh. 29.8 - Prob. 35WDLCh. 29.8 - Prob. 37LOCh. 29.8 - Prob. 4WDTCh. 29.8 - How does the positive feedback mechanism in...Ch. 29.8 - Prob. 38LOCh. 29.8 - Prob. 37WDLCh. 29.9 - Prob. 38WDLCh. 29.9 - Prob. 40LOCh. 29.9 - How does codominant inheritance differ from...Ch. 29.9 - Prob. 41LOCh. 29.9 - Prob. 40WDLCh. 29.9 - Prob. 42LOCh. 29.9 - Prob. 41WDLCh. 29 - _____ 1. The outer layer of the blastocyst that...Ch. 29 - _____ 2. At about day 3 after fertilization, the...Ch. 29 - During gastrulation, cells from the _____ layer of...Ch. 29 - ______ 4. The cells of the embryoblast...Ch. 29 - _____ 5. Which of the following is not an...Ch. 29 - _____ 6. All of the following cardiovascular...Ch. 29 - _____ 7. After a woman gives birth, what happens...Ch. 29 - _____ 8. Freckles are considered to be a dominant...Ch. 29 - _____ 9. Skin color is a trait that is determined...Ch. 29 - A woman is a carrier for the color-blindness gene,...Ch. 29 - Briefly describe the process of fertilization,...Ch. 29 - List the five regions of the mesoderm, and...Ch. 29 - Explain why teratogens are especially harmful to...Ch. 29 - Describe the differences between the embryonic...Ch. 29 - Prob. 15DYBCh. 29 - Prob. 16DYBCh. 29 - Prob. 17DYBCh. 29 - Describe the various ways by which the mothers...Ch. 29 - Compare and contrast strict dominant-recessive...Ch. 29 - Explain the difference between X-linked recessive...Ch. 29 - Prob. 1CALCh. 29 - Ashley is a 29-year-old pregnant woman who is in...Ch. 29 - Ashley is a 29-year-old pregnant woman who is in...Ch. 29 - Prob. 4CALCh. 29 - Ashley is a 29-year-old pregnant woman who is in...Ch. 29 - Prob. 1CSLCh. 29 - Prob. 2CSLCh. 29 - Prob. 3CSL
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- Explain why teratogens are difficult to identify.arrow_forwardBriefly describe the function of the following: - spermatogenic cellarrow_forwardName and describe each of the three stages of prenatal development. Then go on to explain the possible impact of teratogens at each stage. Specifically, look at what structures are most likely to be impacted at each stage.arrow_forward
- Explain the changes to the uterus in a pregnant woman.arrow_forwardName the process of surgical removal of gonads.arrow_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_forward
- In menstruation, the functional layer is shed from the endometrium. Explain the hormonal and physical factors responsible for this shedding. (See Figure 25.19.)arrow_forwardDefine a teratogen and provide several examples of teratogens.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_forward
- Spermatogenesis and oogenesis both involve meiosis but differ in significant ways. One of those differences include what? A) Cytokinesis is unequal in spermatogenesis B) Production of sperm is continuous; in humans, and the number of future egg cells is set at birth C) Oogenesis is an uninterrupted sequence, but there are long delays in spermatogenesis D) All of the abovearrow_forwardReproductive 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_forwardExplain the process of spermatogenesis and oogenesis in vertebrates.arrow_forward
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