Human Anatomy
Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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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

____ (1) blastocyst

____ (2) implantation occurs

____ (3) first few somites appear

____ (4) flat embryo becomes cylindrical

____ (5) embryo/fetus boundary

____ (6) birth

____ (7) primitive streak appears

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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Match 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 6–13
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Chapter 3 Solutions

Human Anatomy

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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