HUMAN ANATOMY W/MODIFEDMAS AP
9th Edition
ISBN: 9780137444250
Author: Marieb
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 6RQ
Match each date in column B [approximate time after conception) with a developmental event or stage in column A.
Column A
Column B
(a) 38 weeks
(b) 15 clays
(c) 4-7 days
(d) about 21 days
(e) about 21-24 days
(f) end of week 8
(g) clays 6-13
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Chapter 3 Solutions
HUMAN ANATOMY W/MODIFEDMAS AP
Ch. 3 - Dining which prenatal period is the basic body...Ch. 3 - Which abdominal structures form from the inner...Ch. 3 - Using directional terms (Table 1.1), describe the...Ch. 3 - Describe gastrulation. During which week of...Ch. 3 - What structure induces the formation of the neural...Ch. 3 - Which type or types of mesoderm Cluster into...Ch. 3 - After folding takes place, which embryonic germ...Ch. 3 - Does endoderm form the inner Iining of the inner...Ch. 3 - Which part of the somite forms the vertebrae and...Ch. 3 - What does the splanchnic lateral plate mesoderm...
Ch. 3 - A birth defect in the heart is caused by a...Ch. 3 - Why is respiratory distress common in babies born...Ch. 3 - 1ndicate whether each of the following relates to...Ch. 3 - The outer layer of the blastocyst, which attaches...Ch. 3 - Most birth defects can be traced to disruption of...Ch. 3 - The primary germ layer that forms the trunk...Ch. 3 - Each embryonic structure in column B with its...Ch. 3 - Match each date in column B [approximate time...Ch. 3 - It is currently possible to save some premature...Ch. 3 - Somites are evidence of (a) a structure from...Ch. 3 - Which of the following embryonic structures are...Ch. 3 - Prob. 10RQCh. 3 - When it is 1.5 months old, an average embryo is...Ch. 3 - Gastrulation is the (a) formation of three germ...Ch. 3 - The epiblast forms (a) only the ectoderm, (b) the...Ch. 3 - The limbs develop during the (a) start of the...Ch. 3 - The notochord develops primarily from (a)...Ch. 3 - The fetal period is (a) the �rst 8 weeks of...Ch. 3 - What important event occurs at the primitive...Ch. 3 - What is the function of the amniotic sac and the...Ch. 3 - (a) What is mesenchyme? (b) How does it differ...Ch. 3 - Explain how the flat embryonic disc takes on the...Ch. 3 - In anatomy lab, Thaya pointed to the vertebrae of...Ch. 3 - Neural crest is the one embryonic tissue that is...Ch. 3 - Many embryonic events �rst occur cranially, then...Ch. 3 - Prob. 24RQCh. 3 - Differentiate the outer tube from the inner tube....Ch. 3 - Before Delta studied embryology in her anatomy...Ch. 3 - A friend in your dormitory, a freshman, tells you...Ch. 3 - Insufficient folic acid in the early weeks of...Ch. 3 - Your cat finds a large ball of string and starts...Ch. 3 - When is the earliest time the sex of a fetus can...
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- ___________ removes webs between developing digits. a. Gastrulation c. Apoptosis b. Lactation d. Implantationarrow_forwardIf the egg is NOT fertilized, the lining of the uterus will shed. This is called?arrow_forwardIn a developing chicken embryo, what mesoderm lines the amniotic cavity?arrow_forward
- Gastrulation is brought about by an invagination of the blastula. True or False?arrow_forwardWhat would happen if a blastocyst implanted into the functional layer of the endometrium and a corpus albicans formed?arrow_forwardWhy do flexion and torsion events occur in the developing embryo?arrow_forward
- Why is it that the first trimester of pregnancy the most critical in humans? How will you relate it to process of gastrulation and primary organ formation in human embryos?arrow_forwardMatch each date in column B (approximate time after conception) with a developmental event or stage in column A.Column A Column B(1) blastocyst (a) 38 weeks(2) implantation occurs (b) 15 days(3) first few somites appear (c) 4–7 days(4) flat embryo becomes cylindrical (d) about 21 days(5) embryo/fetus boundary (e) about 21–24 days(6) birth (f) 2nd of week 8(7) primitive streak appears (g) days 6–13arrow_forwardWill the fertilized egg grow by mitosis or meiosis?arrow_forward
- After the eighth week of development an embryos is referred to as what?arrow_forwardName the embryonic membranes and give the importance of eacharrow_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_forward
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