EBK HUMAN ANATOMY
9th Edition
ISBN: 9780135241752
Author: Marieb
Publisher: PEARSON CO
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Textbook Question
Chapter 3, Problem 21RQ
In anatomy lab, Thaya pointed to the vertebrae of a cadaver and said "sclerotome."
He pointed to a kidney and said, “intermediate mesoderm, “to the biceps muscle in
the arm and said, "splanchnic mesoderm, “to the inner lining of the stomach and
said, " endoderm, " and to the brain and said, "ectoderm." Point out Thaya's one
mistake.
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Part IlI: Discussion
1. How can you distinguish an unfertilized egg from a fertilized egg?
2. As development proceeds from zygote to morula, what happens to the:
a. number of cells?
b. size of cells?
C.
size of the cell mass?
3. Construct a table listing the three germ layers of the gastrula and the major body portions formed
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108
Lab 33
Chapter 3 Solutions
EBK HUMAN ANATOMY
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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- The olfactory pits form from which of the following? mesoderm cartilage ectoderm endodermarrow_forwardThe chart above shows the structures and processes that form the extra-embryonic and embryonic membranes. Place the number in the blank that corresponds to the correct membrane that forms the system, or the structure that is formed by the membrane. Record the answers in the box in the same order as you entered the numbers from top to bottom. ____ Endoderm ____ Ectoderm ____ Umbilical Cord ____ Chorion ____ Circulatory System ___________arrow_forwardPlace the number corresponding to the correct germ layer in the blank. ____ Mesoderm ____ Ectoderm ____ Endodermarrow_forward
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- Male Reproductive system of the Fetal Pig Please refer to the pic to answer the question Explain the functions of the parts observed in the image that relatw to the male reprudctive system. Expalin why this is a malearrow_forwardFetus Inner Cell Mass Mesoderm Implantation Gastrulation Endoderm Zygote Embryo Ectoderm Blastocyst primitive germ (layers) Body Uterus Four implantation endometrium A. How does a human embryo form? Directions: Fill in the blanks below using the terms above. First, an unfertilized egg travels from the to the through the Multiple sperm traveling through the tubes will try to fertilize the egg. Once one of the sperm is successful, development begins. The divides into multiple cells on its way to the After about days, it forms a structure called a The cells inside the blastocyst, known as the will eventually develop into the and other supporting The outer cells of the blastocyst will develop into the tissues. begins when the blastocyst attaches to the Inner cell mass forms a disc, and the cells in the disc begin a process called First, some cells move inward, forming a groove on one side of the disc. This groove will determine the embryo's right-and-left body symmetry as it develops. As…arrow_forwardName two structures derived from each of the three embryonic tissue layers: endoderm, ectoderm, and mesoderm.arrow_forward
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