Inquiry into Life
15th Edition
ISBN: 9781259426162
Author: Sylvia S. Mader Dr., Michael Windelspecht
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 22, Problem S21.3BYB
Section 21.2 and 21.3 Where does fertilization usually occur, and what hormonal changes happen after fertilization?
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Chapter 22 Solutions
Inquiry into Life
Ch. 22.1 - Identify the major structures of a sperm cell and...Ch. 22.1 - Describe the steps involved in fertilization.Ch. 22.1 - Describe the cellular, tissue, and organ stages of...Ch. 22.1 - Outline the steps of fertilization, beginning with...Ch. 22.1 - Describe two ways that an oocyte avoids...Ch. 22.1 - Compare and construct the cellular and tissue...Ch. 22.1 - Identify the organ system that are formed from...Ch. 22.1 - Only one sperm enters an egg because Sperm have an...Ch. 22.1 - The fusion of a sperm and then it will initially...Ch. 22.1 - Which primary germ layer is not correctly matched...
Ch. 22.2 - Explain how cellular differentiation and...Ch. 22.2 - Explain how cytoplasmic segregation and induction...Ch. 22.2 - Describe how morphogen genes, homeotic genes and...Ch. 22.2 - Describe two process that are associated with...Ch. 22.2 - Define the term “morphogen”.Ch. 22.2 - Explain the function of the homeobox sequence in a...Ch. 22.2 - Which process is responsible for the shape and...Ch. 22.2 - The ability of one embryonic tissue to the...Ch. 22.2 - The Identity of each segment of a development...Ch. 22.3 - Identify the extraembryonic membranes and provide...Ch. 22.3 - Summarize in chronological order, the major events...Ch. 22.3 - Describe the flow of blood in a fetus and explain...Ch. 22.3 - Prob. 1CYPCh. 22.3 - Summarize the major events by month during fetal...Ch. 22.3 - Describe the path of blood flow in the fetus...Ch. 22.3 - Explain the function of the placenta.Ch. 22.3 - Prob. 7ACh. 22.3 - Prob. 8ACh. 22.3 - Prob. 9ACh. 22.4 - Describe changes that occur in Indian psychology...Ch. 22.4 - Outline the stages of birth.Ch. 22.4 - Summarize the advantages of breast-feedingCh. 22.4 - Prob. 1QTCCh. 22.4 - Describe the psychological changes that occur in a...Ch. 22.4 - Identify the stage of parturition in which the...Ch. 22.4 - Define colostrum, and least three advantage of...Ch. 22.4 - Prob. 10ACh. 22.4 - Which of the following is increased in the mother...Ch. 22.5 - Describe the factors that contribute to aging.Ch. 22.5 - Discuss the effects of aging on various body...Ch. 22.5 - What is the rule of the hippocampus, and how does...Ch. 22.5 - How might anti-inflammatory drugs slow the...Ch. 22.5 - Explain how telomeres influence cellular aging.Ch. 22.5 - Summarize how that may contribute to aging.Ch. 22.5 - Summarize the diseases that are associated with...Ch. 22.5 - Prob. 12ACh. 22.5 - Prob. 13ACh. 22 - Prob. S5.4BYBCh. 22 - Figure 21.3 and 21.7 What are the difference...Ch. 22 - Section 21.2 and 21.3 Where does fertilization...Ch. 22 - Prob. 1CSCh. 22 - Prob. 2CSCh. 22 - Mitochondria contain their own genetic material....Ch. 22 - Prob. 2TCCh. 22 - 3. Variety of fertility tests are available for...
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- What are some of the general differences in the mother and developing embryo/fetus between the first trimester and the second trimester? Between the second trimester and the third?arrow_forwardWhat are the actions of CRH, HPL, oxytocin, and prolactin during pregnancy?arrow_forwardWhich of the following is required for successful fetal development after the egg has been fertilized? a) That the corpus luteum remains throughout the pregnancy b) Production of estrogen (estradiol) and progesterone from the placenta c) Release of hCG (human chorionic gonatotropin) from the placentaarrow_forward
- What is internal fertilisastion?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_forwardWhere does fertilization normally occur?arrow_forward
- a) If fetal glucose consumption declines, how does the glucose concentration gradient between fetal circulation and the intervillous space change? b) When fetal glucose consumption declines, how is the concentration gradient between parental circulation and the intervillous space impacted? c) When fetal glucose consumption declines, placental tissue adjusts its consumption of glucose to maintain a constant concentration gradient between the fetal circulation and the intervillous space. In order to maintain this gradient, would you expect placental tissue to increase or decrease its glucose consumption, and why is this the case?arrow_forwardQuestion 4. • a) Besides making gametes, ovaries and testes are endocrine glands. What endocrine products does each gonad make? b) Clearly describe the part of the ovary that makes hormones before ovulation. Is this part made of somatic or germ line cells? • c) Clearly describe the part of the testis that makes hormones. Is this part made of somatic or germ line cells?arrow_forwardWhat is the purpose of the placenta? Which part of the blastocyst eventually becomes the fetal placenta? In birds, developing chicks rely on the yolk sac to provide essential nutrients, but in humans, this is not the case. Why don’t we need it to provide nutrition? What is amniocentesis? How is it done?arrow_forward
- How do the somites, intermediate mesoderm, and lateral plate mesoderm contribute to embryonic development?arrow_forwardWhat are the components of antepartum and the possible complications of pregnancy that a pregnant client might encounter towards her pregnancy?arrow_forwarddefine organogenesis and indicate the important roles of the three primary germ layers in this process. what will develop from these three layers?arrow_forward
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