HOLE'S HUMAN ANAT.+PHYS.-CONNECT ACCESS
15th Edition
ISBN: 9781264540358
Author: SHIER
Publisher: MCG
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Textbook Question
Chapter 22, Problem 7IA
Sometimes a sperm cell fertilizes a polar body rather than a secondary oocyte. An embryo does not develop, and the fertilized polar body degenerates. Why is the polar body unable to support development of an embryo?
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Sometimes a sperm cell fertilizes a polar body rather than a secondary oocyte. An embryo does not develop, and the fertilized polar body degenerates. Why is a polar body unable to support development of an embryo?
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Chapter 22 Solutions
HOLE'S HUMAN ANAT.+PHYS.-CONNECT ACCESS
Ch. 22 - Prob. 1PCh. 22 - Prob. 2PCh. 22 - Prob. 3PCh. 22 - Prob. 4PCh. 22 - Prob. 5PCh. 22 - Where in the testes are sperm cells produced?Ch. 22 - Which cells produce male sex hormones?Ch. 22 - Review the events of spermatogenesis.Ch. 22 - Explain the function of the sustentacular cells in...Ch. 22 - Prob. 10P
Ch. 22 - Describe the structure of the epididymis.Ch. 22 - Trace the path of the ductus deferns.Ch. 22 - What is the function of a seminal vesicle?Ch. 22 - Where is the prostate gland located?Ch. 22 - What is the function of the bulbourethral glands?Ch. 22 - Prob. 16PCh. 22 - Prob. 17PCh. 22 - Prob. 18PCh. 22 - Prob. 19PCh. 22 - Distinguish among orgasm, emission, and...Ch. 22 - Prob. 21PCh. 22 - Prob. 22PCh. 22 - Prob. 23PCh. 22 - Explain how the secretion of male sex hormones is...Ch. 22 - Prob. 25PCh. 22 - Prob. 26PCh. 22 - Prob. 27PCh. 22 - Prob. 28PCh. 22 - Prob. 29PCh. 22 - Prob. 30PCh. 22 - Prob. 31PCh. 22 - Prob. 32PCh. 22 - Prob. 33PCh. 22 - Prob. 34PCh. 22 - Prob. 35PCh. 22 - Prob. 36PCh. 22 - What is the male counterpart of the labia majora?...Ch. 22 - Prob. 38PCh. 22 - Prob. 39PCh. 22 - Prob. 40PCh. 22 - Prob. 41PCh. 22 - Prob. 42PCh. 22 - Prob. 43PCh. 22 -
44 What are the function of estrogens?
Ch. 22 - Prob. 45PCh. 22 - Trace the events of the female reproductive cycle.Ch. 22 - Prob. 47PCh. 22 - Prob. 48PCh. 22 - Prob. 49PCh. 22 - Prob. 50PCh. 22 - Prob. 51PCh. 22 - Prob. 52PCh. 22 - Describe two methods of contraception that use...Ch. 22 - Prob. 54PCh. 22 - Prob. 55PCh. 22 - Prob. 56PCh. 22 - Prob. 57PCh. 22 - Prob. 58PCh. 22 - Prob. 59PCh. 22 - What are some common symptoms of diseases...Ch. 22 - Prob. 1CACh. 22 - Prob. 2CACh. 22 - Prob. 3CACh. 22 - Prob. 4CACh. 22 - Prob. 5CACh. 22 - Prob. 6CACh. 22 - Explain the function of the sustentacular cells in...Ch. 22 - Prob. 8CACh. 22 - Describe a sperm cell. (p. 829)Ch. 22 - Prob. 10CACh. 22 - Prob. 11CACh. 22 - Describe the composition of semen. (p. 834)Ch. 22 - Prob. 13CACh. 22 - Prob. 14CACh. 22 - Prob. 15CACh. 22 - Distinguish between emission and ejaculation. (pp....Ch. 22 - Prob. 17CACh. 22 - Prob. 18CACh. 22 - Prob. 19CACh. 22 - Prob. 20CACh. 22 - Prob. 21CACh. 22 - Prob. 22CACh. 22 - Explain the regulation of testosterone secretion....Ch. 22 - Prob. 24CACh. 22 - Describe how the ovaries are held in position. (p....Ch. 22 - Prob. 26CACh. 22 - Prob. 27CACh. 22 - List the steps in oogenesis. (p. 841)Ch. 22 - Prob. 29CACh. 22 - Distinguish between a pre-antral and an antral...Ch. 22 - Prob. 31CACh. 22 - Prob. 32CACh. 22 - Prob. 33CACh. 22 - Prob. 34CACh. 22 - Prob. 35CACh. 22 - Prob. 36CACh. 22 - Prob. 37CACh. 22 - Prob. 38CACh. 22 - Prob. 39CACh. 22 - Prob. 40CACh. 22 - Prob. 41CACh. 22 - If left untreated, a complication of the diseases...Ch. 22 - Prob. 1IACh. 22 - Prob. 2IACh. 22 - Prob. 3IACh. 22 - Prob. 4IACh. 22 - As a male reaches adulthood, what will be the...Ch. 22 - Prob. 6IACh. 22 - Sometimes a sperm cell fertilizes a polar body...
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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
- Which oocyte stage is ovulated? What happens to it if it encounters a sperm cell there? What happens if it does not meet up with sperm?arrow_forwardIf one follows 50 primary oocytes in an animal through theirvarious stages of oogenesis, how many secondary oocytes wouldbe formed? How many first polar bodies would be formed? Howmany ootids would be formed? If one follows 50 primary spermatocytes in an animal through their various stages of spermatogenesis, how many secondary spermatocytes would beformed? How many spermatids would be formed?arrow_forwardAfter fertilization a developing embryos goes through several changes. At about 2-3 days, what is the embryo referred to as?arrow_forward
- Describe 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_forwardA friend in your dormitory, a freshman, tells you that she just discovered she is 3 months pregnant. You know that since she came to college she has been experimenting with recreational drugs. Circle the best advice you could give her, and explain your choice. (a) She must stop taking the drugs, but they could not have affected her fetus during these first few months of her pregnancy. (b) Harmful substances usually cannot pass from mother to embryo, so she can keep using drugs. (c) There could be defects in the fetus, so she should stop using drugs and visit a doctor as soon as possible. (d) If she has not taken any drugs in the last week, she is OK.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
- Why is it concerning for a fertilized egg to implant outside of the uterus?arrow_forwardWhy is a second polar body expelled after fertilisation? a) To remove excess cytoplasm b) Because the oocyte must reactivate the incomplete meiosis before fusing with the sperm c) Before fusion with the sperm it must complete mitosis d) The fertilised oocyte is not a haploid cell until it expels the sperms mitochondriaarrow_forwardEmily and her husband are thrilled as they peer into Emily's uterus by means of an ultrasound. The physician reports that the pregnancy appears normal and that their baby's organs, spine, and arms and legs are developing as expected. Given this information, the current stage of prenatal development is the embryonic period germinal period zygotic period fetal stage placentaarrow_forward
- There are 6 major events in fertilization. Discuss the process of fertilization or conception, with emphasis on the sperm-egg interaction. Proteins on the sperm plasma membrane bind to ZP3 molecules within the zona pellucida of the egg. Why is this event important? Zona binding triggers the acrosome reaction, in which the sperm plasma membrane fuses with the outer acrosomal membrane, causing exocytosis of acrosomal contents. What is in the "acrosomal content"? Acrosomal enzymes begin to dissolve a hole in the zona pellucida. This enzymatic degradation, accompanied by rapid sperm tail beating, moves the sperm through the zona. Where does the sperm intend to reach?arrow_forwardList three ways in which oogenesis differs from spermatogenesis. Be specific!arrow_forwardAfter fertilization the blastocyst develops three germ layers. Which germ layer is the innermost layer?arrow_forward
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