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Essentials of Human Anatomy and Physiology (Custom)
15th Edition
ISBN: 9781269752862
Author: Marieb
Publisher: PEARSON
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Textbook Question
Chapter 16, Problem 11MC
The outer layer of the blastocyst, which attaches to the uterine wall, is the
a. yolk sac.
c. amnion.
b. inner cell mass.
d. trophoblast.
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Students have asked these similar questions
The outer layer of the blastocyst that attaches to the wall of theuterus at implantation is called thea. amnion.b. yolk sac.c. embryoblast.d. trophoblast.
The embryo proper develops from thea. inner cell mass.b. trophoblast.c. blastocele.d. yolk sac.
Which of the following statements is NOT correct about the umbilical cord?
a. The umbilical cord is formed from the yolk sac and the allantois.
b. The umbilical cord is formed from the chorion.
c. The umbilical cord consists of two arteries and one vein.
d. The placenta connects to the embryon via the umbilical cord.
Chapter 16 Solutions
Essentials of Human Anatomy and Physiology (Custom)
Ch. 16 - More than one choice may apply.
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Ch. 16 - The outer layer of the blastocyst, which attaches...Ch. 16 - Prob. 12MCCh. 16 - During human embryonic development, organogenesis...Ch. 16 - What are the endocrine and exocrine functions of...Ch. 16 - Prob. 15SAECh. 16 - How does semen provide an ideal environment for...Ch. 16 - Prob. 17SAECh. 16 - Prob. 18SAECh. 16 - 19. How does enlargement of the prostate interfere...Ch. 16 - What is the function of the acrosome?Ch. 16 - Prob. 21SAECh. 16 - 22. Explain why a man’s sexual responsiveness and...Ch. 16 - Prob. 23SAECh. 16 - Prob. 24SAECh. 16 - 25. Name the structures of the female duct system,...Ch. 16 - Prob. 26SAECh. 16 - Prob. 27SAECh. 16 - Prob. 28SAECh. 16 - Prob. 29SAECh. 16 - List and describe the events of the menstrual...Ch. 16 - Prob. 31SAECh. 16 - Prob. 32SAECh. 16 - Prob. 33SAECh. 16 - Prob. 34SAECh. 16 - Prob. 35SAECh. 16 - What is the indifferent stage of embryonic...Ch. 16 - Prob. 37SAECh. 16 - 38. Compare the effects of aging on the male and...Ch. 16 - Prob. 39CAQCh. 16 - Prob. 40CAQCh. 16 - James has been home from university over the...
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- What part of the blastocyst develops into the embryo?a. Yolk sacb. Placentac. Polar bodyd. Inner cell massarrow_forwardWhich of the following statements is NOT correct about the umbilical cord? Select one: a. The umbilical cord is formed from the chorion. b. The placenta connects to the embryon via the umbilical cord. c. The umbilical cord consists of two arteries and one vein. d. The umbilical cord is formed from the yolk sac and the allantois.arrow_forwardWhich of the following structures develops into only the fetus? a. Inner cell mass b. Trophoblast c. Blastocyst d. Zygotearrow_forward
- Which of the following statements is incorrect?a. The placenta secretes hormones such as progesterone, hCG, and estrogen.b. Embryonic tissue and maternal tissue forms the placenta.c. The chorion supplies nutrients to the embryo by diffusion.d. The umbilical cord is formed by one artery and two veinsarrow_forwardGastrulation does NOT Select one: a. involve the formation of germ layers b. consist of endoderm, mesoderm, and ectoderm c. result in the formation of a third layer in the embryonic disk d. include the differentiation of cells into tissues and organsarrow_forwardMatch the germ layer on the right with its contribution to the tissues and organs of the embryo, on the left. v connective tissue stroma A. mesoderm v parenchymal cells, e.g., liver B. ectoderm C. mesoderm D. mesoderm E. endoderm F. endoderm vasculature v innervation v epithelium of enteric secretory duct tubes v epithelium of integumentary system G. ectoderm v elastic membranearrow_forward
- During the embryonic development, the trophoblast will develop into Select one: a. the yolk sac b. the amnion and amniotic cavity c. the chorion d. the embryonic discarrow_forwardDuring the embryonic developmen, the trophoblast will developed into Select one: A. The embryonic disc B. The chorion C. The amnion and amniotic cavity D. The yolk sacarrow_forwardWhich of the following statements does NOT correctly describe the events following fertilization? Select one: a. Only the inner cell mass cells in a blastocyst are pluripotent. b. The trophoblast has an important role in maintaining the pregnancy, as it prevents the endometrium from shedding. c. As hCG takes over maintaining the endometrium immediately after implantation, the corpus luteum degenerates into the corpus albican. d. All 16 cells in a morula are truly totipotent, meaning that they can become any cells in the human body.arrow_forward
- Given these structures:(1) blastocyst (2) morula (3) zygoteChoose the arrangement that lists the structures in the order in whichthey form during development.a. 1,2,3 c. 2,3,1 e. 3,2,1b. 1,3,2 d. 3,1,2arrow_forwardComponent of bilaminar germ disc: a.Hypoblast and endoderm b.Epiblast and hypoblast c.Epiblast and ectoderm d.Ectoderm and mesodermarrow_forwardA gastrulation does NOT Select one: A. Consist of endoderm, mesoderm, and ectoderm B. Result in the formation of a third layer in the embryonic disc C. Involve the formnation of germ layers D. Include the differentiation of cells into tissues and organsarrow_forward
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