Explanation Conus medullaris is the region where the spinal cord terminates in a conical and a tapering structure. It is inferior to the enlargement of the lumbar region. This region ends at a degree of the intervertebral disc, which is situated in the middle of first and the second lumbar vertebrae in the human adults. The lumbar vertebrae are counted as L1 and L2. Filum terminale is basically terminal filament, which is an extension of the pia mater that runs inferiorly and unites with the dura and arachnoid mater and then further anchors the spinal cord with the coccyx. Cauda equina: The spinal cord is shorter in length as compared to the vertebral column, the nerves start from the coccygeal and lumbar-sacral areas of the spinal cord do not exit the vertebral region at the same level as that of the spinal cord and hence, these roots are collectively known as cauda equina...

15th Edition

ISBN: 9781119662761

Author: Tortora

Publisher: WILEY

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Question

Chapter 13, Problem 3CP

Summary Introduction

To review:

The definitions of conus medullaris, filum terminale, cauda equine, and spinal segment. Also, the partial division of spinal cord into right and left sides.

Introduction:

The spinal cord is basically the backbone of the vertebrates, which is somewhat oval in shape and is slightly flat posteriorly and anteriorly. In human adults, it runs from the inferior region of the brain to the medulla oblongata, and toward the superior boundary of the second lumbar vertebra.

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Chapter 13, Problem 2CP

Chapter 13, Problem 4CP

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Chapter 13 Solutions

PRIN.OF HUMAN ANATOMY (LL)

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Solution Summary: The author explains the definitions of conus medullaris, filum terminale, cauda equine, and spinal segment.

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