Explanation Spinal cord is shielded by cerebrospinal fluid, bones, and meninges. The single-sheeted spinal dura mater is not linked to the bony panels of the vertebral column. Between the bony and vertebrae as well as the spinal dura mater is the epidural space, which is known to be filled with the soft padding of the fat and the mesh of veins. Inferiorly, this tube-like structure ends in the tapering cone-shaped structure, which is referred to as conumedullaris. A fibrous extension of the conus is known to be covered by the pia mater and it is known as filum terminale...

6th Edition

ISBN: 9780134156415

Author: Elaine N. Marieb, Katja N. Hoehn

Publisher: PEARSON

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Question

Chapter 12.10, Problem 23CYU

Summary Introduction

To review:

The reason for the lumbar and cervical enlargements of the spinal cord.

Introduction:

The spinal cord is known to be covered in the vertebral column, which continues from the foramen magnum of the skull to the 1^st or the 2^nd lumbar vertebra, which is present just below to the ribs. Around 42 centimeters long and 1.8 centimeters wide is the glistening-white spinal cord.

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Chapter 12.9, Problem 22CYU

Chapter 12.10, Problem 24CYU

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Chapter 12 Solutions

Anatomy & Physiology (6th Edition)

Ch. 12.1 - Which ventricle is surrounded by the diencephalon?Ch. 12.1 - Prob. 2CYU Ch. 12.1 - Prob. 3CYU Ch. 12.2 - What anatomical landmark of the cerebral cortex...Ch. 12.2 - Mike, who is left-handed, decided to wear his...Ch. 12.2 - Prob. 6CYU Ch. 12.2 - Name the components of the basal nuclei.Ch. 12.3 - Prob. 8CYU Ch. 12.3 - The hypothalamus oversees a branch of the...Ch. 12.4 - Prob. 10CYU

Ch. 12.4 - Prob. 11CYU Ch. 12.5 - Prob. 12CYU Ch. 12.6 - The limbic system is sometimes called the...Ch. 12.6 - When Taylor begins to feel drowsy while driving,...Ch. 12.7 - Name three factors that can enhance transfer of...Ch. 12.7 - Prob. 16CYU Ch. 12.7 - Which two states of consciousness are between...Ch. 12.7 - During which sleep stage are most skeletal muscles...Ch. 12.8 - Prob. 19CYU Ch. 12.8 - A brain surgeon is about to make an incision. Name...Ch. 12.9 - Prob. 21CYU Ch. 12.9 - Prob. 22CYU Ch. 12.10 - Prob. 23CYU Ch. 12.10 - Trevor was tackled while playing football. After...Ch. 12.11 - Where are the cell bodies of the first-, second-,...Ch. 12.11 - Prob. 26CYU Ch. 12.11 - Figure 12.32 shows both tracts and nerves, as well...Ch. 12 - Prob. 1MC Ch. 12 - A patient has suffered a cerebral hemorrhage that...Ch. 12 - Choose the correct term from the key to respond to...Ch. 12 - The innermost layer of the meninges, delicate and...Ch. 12 - Prob. 3MC Ch. 12 - Which of the following tracts convey vibration and...Ch. 12 - Destruction of the ventral horn cells of the...Ch. 12 - Prob. 8MC Ch. 12 - Prob. 9MC Ch. 12 - A professor unexpectedly blew a loud horn in his...Ch. 12 - Identify the stage of sleep described by using...Ch. 12 - All of the following descriptions refer to dorsal...Ch. 12 - Prob. 13SAQ Ch. 12 - (a) What is the advantage of having a cerebrum...Ch. 12 - (a) Make a rough drawing of the lateral aspect of...Ch. 12 - Prob. 16SAQ Ch. 12 - (a) What is the function of the basal nuclei? (b)...Ch. 12 - Explain how the cerebellum is physically connected...Ch. 12 - Describe the role of the cerebellum in maintaining...Ch. 12 - Prob. 20SAQ Ch. 12 - (a) Localize the reticular formation in the brain....Ch. 12 - Prob. 22SAQ Ch. 12 - Prob. 23SAQ Ch. 12 - Compare and contrast short-term memory (STM) and...Ch. 12 - Define memory consolidation.Ch. 12 - List four ways in which the CNS is protected.Ch. 12 - Prob. 27SAQ Ch. 12 - Prob. 28SAQ Ch. 12 - (a) Define concussion and contusion. (b) Why does...Ch. 12 - Describe the spinal cord, depicting its extent,...Ch. 12 - How do the types of motor activity controlled by...Ch. 12 - Describe the functional problems that would be...Ch. 12 - Prob. 33SAQ Ch. 12 - How do the conditions paraplegia, hemiplegia, and...Ch. 12 - Prob. 35SAQ Ch. 12 - 39-Year-Old Female with Traumatic Brain Injury...Ch. 12 - 39-Year-Old Female with Traumatic Brain Injury...Ch. 12 - 39-Year-Old Female with Traumatic Brain Injury...Ch. 12 - 39-Year-Old Female with Traumatic Brain Injury...Ch. 12 - 39-Year-Old Female with Traumatic Brain Injury...

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Solution Summary: The author explains the reason for the lumbar and cervical enlargements of the spinal cord.

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