Principles of Anatomy and Physiology
15th Edition
ISBN: 9781119329398
Author: Gerard J Tortora, Bryan Derrickson
Publisher: John Wiley & Sons Inc
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Chapter 15, Problem 3CP
Summary Introduction
To review:
The reason as to why the sympathetic division of the autonomic nervous system (ANS) is called the thoracolumbar division even when it extends to the sacral region from the cervical region.
Introduction:
Each and every division of the ANS is composed of two motor neurons. The first motor neuron has the cell body in the spinal cord or the brain and is called preganglionic neuron. The axon of this neuron exits the central nervous system (CNS) and extends to the autonomic ganglion. The second neuron is known as postganglionic neuron that synapses with the preganglionic neuron and extends till the visceral effector.
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After you feel comfortable with your counting method and identifying cells in the various stages of mitosis, use the four images below of whitefish blastula to count the cells in each stage until you reach 100 total cells, recording your data below in Data Table 1. (You may not need to use all four images. Stop counting when you reach 100 total cells.)
After totaling the cells in each stage, calculate the percent of cells in each stage. (Divide total of stage by overall total of 100 and then multiply by 100 to obtain percentage.)
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Principles of Anatomy and Physiology
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