LooseLeaf for Human Anatomy
5th Edition
ISBN: 9781259285271
Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien
Publisher: McGraw-Hill Education
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Chapter 3, Problem 3MC
Summary Introduction
Introduction:
The embryonic period initiates with the establishment of the primary germ layers. The formation of germ layers is called gastrulation. After gastrulation, organogenesis occurs through which the basic structure of all organs are formed.
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The process forming the neural tube and plate via the intercalation of cells along the medial-lateral axis and extension along the anterior-posterior axis occurs is called?
a. neurulation
b. embryogenesis
c. convergent extension
d. morphogenesis
The beginning of brain and spinal cord formation is termeda. cephalocaudal folding.b. organogenesis.c. neurulation.d. gastrulation.
The folding of ectoderm on the top of the embryo during organogenesis produces...?
Group of answer choices
a. somites
b. the archenteron
c. the neural tube
d. the gastrula
e. the blastula
Chapter 3 Solutions
LooseLeaf for Human Anatomy
Ch. 3 - What are two ways in which meiosis differs from...Ch. 3 - What is crossing over, and during what phase of...Ch. 3 - Prob. 3WYLCh. 3 - Prob. 4WYLCh. 3 - How is a secondary oocyte different from an ovum?Ch. 3 - Prob. 6WYLCh. 3 - What is the name of the core of cells at one end...Ch. 3 - Prob. 8WYLCh. 3 - Prob. 9WYLCh. 3 - What structure induces the process of neurulation?
Ch. 3 - Prob. 11WYLCh. 3 - What structures in the embryo are derived from the...Ch. 3 - Prob. 13WYLCh. 3 - Prob. 14WYLCh. 3 - Match each numbered item with the most closely...Ch. 3 - Prob. 1MCCh. 3 - The outer layer of the blastocyst that attaches to...Ch. 3 - Prob. 3MCCh. 3 - Somites develop from. a. paraxial mesoderm b....Ch. 3 - Prob. 5MCCh. 3 - An abnormal number of chromosomes in a cell...Ch. 3 - Prob. 7MCCh. 3 - Which of the following is not an extraembryonic...Ch. 3 - Prob. 9MCCh. 3 - The beginning of brain and spinal cord formation...Ch. 3 - Briefly describe the process of meiosis,...Ch. 3 - Prob. 2CRCh. 3 - Prob. 3CRCh. 3 - Prob. 4CRCh. 3 - What important event occurs with the formation of...Ch. 3 - Prob. 6CRCh. 3 - Prob. 7CRCh. 3 - Prob. 8CRCh. 3 - Prob. 9CRCh. 3 - Prob. 10CRCh. 3 - Jennifer is a 37-year-old woman who is just over 3...Ch. 3 - In the late 1960s, a number of pregnant women in...Ch. 3 - Prob. 3DCR
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- Define and describe the main features of the following developmental stages: fertilization, cleavage, gastrulation.arrow_forwardExternal fertilization occurs in which type of environment? a. aquatic b. forested c. savanna d. steppearrow_forwardThe formation of three germ layers is called Select one: a. gastrulation b. pluripotency c. differentiation d. neurulationarrow_forward
- Endoderm, Mesoderm, and Ectoderm are formed during ________. a. Gametogenesis b. Cleavage c. Gastrulation d. Organogenesisarrow_forwardFrom which of the following is the embryo developed? a) Trophoblasts b) Blastocoelen c) The yellow sacks d) Inner cell massarrow_forwardHow do you expect Kartagener syndrome leads to infertility? A. The lack of a plasma membrane means that pathogens and foreign substances can permeate the sperm and damage the DNA B. The lack of microtubules mean the sperm do not have tails and cannot swim to fertilize the egg C. The lack of dynein means that the sperm cannot bend their tails to swim and fertilize the eggarrow_forward
- At which embryonic event would one be able to first distinguish whether an embryo is diploblastic or triploblastic? A)cleavage B)metamorphosis C)fertilization D)gastrulation E)organogenesisarrow_forwardIf an egg cell were treated with EDTA, a chemical that bindscalcium and magnesium ions,(A) the acrosomal reaction would be blocked.(B) the fusion of sperm and egg nuclei would be blocked.(C) the fast block to polyspermy would not occur.(D) the fertilization envelope would not form.arrow_forwardThe main function of the acrosome reaction is to (a) activate the egg (b) improve sperm motility (c) prevent interspecific fertilization (d) facilitate penetration of the egg coverings by the sperm (e) cause fusion of the sperm and egg pronucleiarrow_forward
- The archenteron develops into(A) the mesoderm.(B) the endoderm.(C) the placenta.(D) the lumen of the digestive tract.arrow_forwardHow does the oocyte prevent polyspermy? a) Changing the structure of the zona pellucida when a sperm fuses with the oocyte cell membrane b) Releasing enzymes, which destroy all other sperm c) Moving away from any surrounding sperm d) Shedding the zona pellucidaarrow_forwardThe process by which the structure labeled B is released from the structure labeled A is known as? A. differentiation B. ovulation C. gastrulation D. germinationarrow_forward
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Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY