Human Anatomy (8th Edition) - Standalone book
8th Edition
ISBN: 9780321883322
Author: Frederic H. Martini, Robert B. Tallitsch
Publisher: PEARSON
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Chapter 14, Problem 21RFT
Summary Introduction
Introduction:
The spinal cord is a long, tubular structure made up of the nervous tissues. It is protected by the vertebral column. It starts form the medulla in the brain stem and end at the conus medullaris. The largest diameter of the spinal cord is present in the cervical area, whereas the smallest is in the coccygeal and sacral regions. The brain together with the spinal cord forms the central nervous system (CNS) of the body.
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(a) What are the superior and inferior boundaries of the spinal cord in the vertebral canal? (b) A correctly executed lumbar spinal tap could poke the cauda equina or filum terminale, but not the conus medullaris. Explain.
Sketch the spinal cord in cross section, and label the following structures: (a) lateral funiculus of white matter, (b) ventral root, (c) ventral horn of gray matter, (d) central canal, (e) dorsal root ganglion, (f) dorsal column tracts: fasciculus gracilis and fasciculus cuneatus, (g) ventral corticospinal tract, (h) lateral corticospinal tract.
the bundle of fibers that the spinal cord continues down is called the ........................
Chapter 14 Solutions
Human Anatomy (8th Edition) - Standalone book
Ch. 14 - Match each numbered item with the most closely...Ch. 14 - Prob. 2RFTCh. 14 - Prob. 3RFTCh. 14 - Prob. 4RFTCh. 14 - Prob. 5RFTCh. 14 - Prob. 6RFTCh. 14 - Prob. 7RFTCh. 14 - Prob. 8RFTCh. 14 - Prob. 9RFTCh. 14 - Match each numbered item with the most closely...
Ch. 14 - Label the following structures on the accompanying...Ch. 14 - Prob. 12RFTCh. 14 - The brachial plexus (a) innervates the shoulder...Ch. 14 - Prob. 14RFTCh. 14 - Prob. 15RFTCh. 14 - Prob. 16RFTCh. 14 - Prob. 17RFTCh. 14 - Prob. 18RFTCh. 14 - Prob. 19RFTCh. 14 - Prob. 20RFTCh. 14 - Prob. 21RFTCh. 14 - Prob. 1RCCh. 14 - Prob. 2RCCh. 14 - Tingling and numbness in the palmar region of the...Ch. 14 - Prob. 4RCCh. 14 - Prob. 5RCCh. 14 - Prob. 6RCCh. 14 - Prob. 7RCCh. 14 - Prob. 8RCCh. 14 - Prob. 9RCCh. 14 - Why is it important that a spinal tap be done...Ch. 14 - Prob. 1CTCh. 14 - Prob. 2CTCh. 14 - Prob. 3CT
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following is NOT true in adults? (A) The tapering end of the spinal cord may terminate as high as T12 or as low as L3. (B) The first cervical nerves lack dorsal roots in 50% of people. (C) The coccygeal nerve may be absent. (D) The terminal filum is the vestigial rem- nant of the caudal part of the spinal cord that was in the tail of the embryo. (E) The spinal cord has a lumbar enlargement for the lower limb but no equivalent enlargement for the smaller upper limb.arrow_forwardChoose the correct answer, and explain why it is correct. Through which pair of intervertebral foramina do spinal nerves L5 leave the vertebral canal? (a) holes in the sacrum, (b) just superior to vertebra L5, (c) just superior to S1, (d) just inferior to S4.arrow_forwardWhat is the deep ventral furrow of the spinal cord called?arrow_forward
- Select the best answer or answers from the choices given: Destruction of the ventral horn cells of the spinal cord results in loss of (a) integrating impulses, (b) sensory impulses, (c) voluntary motor impulses, (d) all of these.arrow_forwardWhich of the following parts of a neuron occupies the gray matter in the spinal cord? (a) tracts of long axons, (b) motor neuron cell bodies, (c) sensory neuron cell bodies, (d) nerves.arrow_forward1) Motor information exits the spinal cord through the: a) anterior column. b) posterior column. c) anterior horn. d) posterior horn.arrow_forward
- John is having trouble moving his tongue. His physi- cian tells him it is due to pressure on a cranial nerve. Which cranial nerve is involved?arrow_forwardThe posterior funiculus is another name for which part of the spinal cord?arrow_forwardWhat is the source of the spinal cord's blood supply?arrow_forward
- Injury to the accessory nerve may result in sternocleidomastoid muscledysfunction, a condition called torticollis (sometimes called wry neck),in which the head is drawn to one side. If the head is turned to the left,does this position indicate injury to the left or the right spinal componentof the accessory nerve?arrow_forward(a) What is the function of the basal nuclei? (b) Which basal nuclei form the striatum? (c) Which arches over the diencephalon?arrow_forwardHow many spinal nerves are there in a body?arrow_forward
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