Explanation 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: Cervical, thoracic, lumbar and sacral regions. The inferior or distal end of the spinal cord: The most inferior portion of the spinal cord is known as the conus medullaris. It has a tapering end that continues as the filum terminale. There is a collection of nerve roots at the distal to this nd of the spinal cord. It is a horsetail-like structure and known as the cauda equina. Lumbar: Below the thoracic region, there is a Lumbar region. It has 5 vertebrae that are abbreviated as L1 to L5 (from top to bottom). The shape and size of each lumbar vertebra are helpful in carrying most of the body's weight. Lumbar vertebrae are larger, broader than alike components of the cervical and thoracic regions...

5th Edition

ISBN: 9780073403700

Author: Kenneth S. Saladin Dr.

Publisher: McGraw-Hill Education

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Question

Chapter 14.1, Problem 2BYGO

Summary Introduction

To write:

About the inferior or distal end of the spinal cord. The alignment of the vertebral canal from L2 to S5.

Introduction:

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.

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Chapter 14.1, Problem 1BYGO

Chapter 14.1, Problem 3BYGO

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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 defines the spinal cord as the cylindrical bundle of nerve fibers and connected tissue that joins all the body parts to the brain.

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