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. The cord is organized segmentally. There are 31 segments that are signified as 31 pairs of nerves in the cord. These nerves are separated into 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal nerve. Thus, the spinal cord has four main and different regions: The cervical, thoracic, lumbar and sacral regions. 1. Cervical: Cervical Spine is the neck region of the spine. This region has seven vertebrae, that are abbreviated as C1 to C7 (from top to bottom). These vertebrae help in protecting the brain stem and the spinal cord. It also supports the skull and permit for a broad range of head movement. 2. Thoracic: Below the cervical region, there is thoracic region. There are 12 vertebrae of this region that are abbreviated as T1 to T12 (from top to bottom). T1 vertebrae are the smallest while the T12 is the largest thoracic vertebra. These thoracic vertebrae are bigger than the cervical bones...

5th Edition

ISBN: 9780073403700

Author: Kenneth S. Saladin Dr.

Publisher: McGraw-Hill Education

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Question

Chapter 14.1, Problem 1BYGO

Summary Introduction

To write:

The name of the four main parts and two enlargements of the spinal cord.

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 1AWYK

Chapter 14.1, Problem 2BYGO

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Chapter 14 Solutions

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 explains the four main parts and two enlargements of the spinal cord.

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