Explanation The spinal cord can be defined as the cylindrical bundle of the nerve fibers and connected tissue. It is surrounded in the spinal region and joins approximately all the body parts to the brain. It forms the central nervous system with the brain. A cross-section diagram of the spinal cord and spinal nerves which shows the position of a posterior and anterior horn along with gray and white matter is given below: 1. A spinal nerve: It can be defined as a mixed nerve, that carries sensory, motor, and autonomic signals or information between the spinal cord and the remaining body. In the human body, there are present 31 pairs of spinal nerves. These are located on each side of the vertebral column. 2. The ascending tracts: These are the neural pathways by which the sensory message from the peripheral nerves is transferred to the cerebral cortex. These are also known as somatosensory systems or pathways. 3. Descending tracts: These are those pathways by which the motor signals are directed from the brain to the lower motor neurons...

5th Edition

ISBN: 9781259683831

Author: Eric Wise, Kenneth S. Saladin Dr.

Publisher: McGraw-Hill Education

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Question

Chapter 14.1, Problem 3BYGO

Summary Introduction

To draw:

A cross-section diagram of the spinal cord and spinal nerves which shows the position of an afferent neuron, efferent neuron, and an interneuron. Also label the white matter, gray matter, ventral root, dorsal root, and spinal nerve.

Introduction:

Motor control can be defined as the systematic control of movement in organisms that contain a nervous system. The primary motor cortex (M1) is the main area of the brain that is involved in the motor function. M1 is present in the frontal lobe of the brain.

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Chapter 14.1, Problem 2BYGO

Chapter 14.1, Problem 4BYGO

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Chapter 14 Solutions

Laboratory Manual for Human Anatomy

Ch. 14.1 - Prob. 1AWYK Ch. 14.1 - Prob. 1BYGO Ch. 14.1 - Prob. 2BYGO Ch. 14.1 - Prob. 3BYGO Ch. 14.1 - Prob. 4BYGO Ch. 14.1 - Identify each of the following spinal tracts with...Ch. 14.2 - How does the structure of a nerve compare to that...Ch. 14.2 - Prob. 6BYGO Ch. 14.2 - Prob. 7BYGO Ch. 14.2 - List the five plexuses of spinal nerves and state...

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Solution Summary: The author defines motor control as the systematic control of movement in organisms that contain a nervous system.

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