Modified Mastering A&P with Pearson eText -- Standalone Access Card -- for Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134763415
Author: Elaine N. Marieb, Katja Hoehn
Publisher: PEARSON
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Chapter 28, Problem 1RQ
Summary Introduction
To determine:
Match the following statement with (a) cleavage or (b) gastrulation.
(1) Period during which a morula forms
(2) Period when vast amounts of cell migration occur
(3) Period when the three embryonic germ layers appear
(4) Period during which the blastocyst is formed
Expert Solution & Answer
Answer to Problem 1RQ
Solution:
| Term | Statement |
| Cleavage | Period during which morula forms |
| Gastrulation | Period when vast amounts of cell migration occur |
| Gastrulation | Period when the 3 embryonic germ layers appear |
| Cleavage | Period during which the blastocyst is formed |
Explanation of Solution
(1) The blastula gets cleaved to form a solid ball of cells known as a morula. It is the early stage of the embryo that contains cells or blastomeres.
(2 and 3) Gastrulation is the method where three main germ layers, namely, the ectoderm, endoderm, and mesoderm are present in the correct topological position. A huge amount of cell migration takes place.
(4) The blastocyst refers to the structure that is formed during the early growth of the mammals. The cleavage is most commonly seen during this phase.
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Chapter 28 Solutions
Modified Mastering A&P with Pearson eText -- Standalone Access Card -- for Human Anatomy & Physiology (11th Edition)
Ch. 28 - Prob. 1RQCh. 28 - 2. Most systems are operational in the fetus by...Ch. 28 - Prob. 3RQCh. 28 - Match each adult structure in column B with the...Ch. 28 - Prob. 5RQCh. 28 - Prob. 6RQCh. 28 - Prob. 7RQCh. 28 - 11. The germ layer from which the epidermis and...Ch. 28 - Prob. 9RQCh. 28 - Prob. 10RQ
Ch. 28 - Prob. 14RQCh. 28 - Prob. 22RQCh. 28 - Prob. 15RQCh. 28 - Prob. 16RQCh. 28 - 19. The placenta is a marvelous, but temporary,...Ch. 28 - Prob. 17RQCh. 28 - 21. What is the function of gastrulation?
Ch. 28 - Prob. 11RQCh. 28 - Prob. 12RQCh. 28 - Prob. 19RQCh. 28 - Prob. 20RQCh. 28 - Prob. 13RQCh. 28 - Prob. 24RQCh. 28 - Prob. 25RQCh. 28 - Prob. 21RQCh. 28 - 38-Year-Old Female with Preeclampsia Ms. Johansen,...Ch. 28 - 38-Year-Old Female with Preeclampsia Ms. Johansen,...Ch. 28 - Prob. 3CCSCh. 28 - 38-Year-Old Female with Preeclampsia Ms. Johansen,...Ch. 28 - 38-Year-Old Female with Preeclampsia Ms. Johansen,...
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