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 15RFT
Summary Introduction
Introduction:
The pectoral girdle is also known as the shoulder girdle. It is composed of two bones, namely the clavicle and the scapula. It is innervated by the brachial plexus, which begins from the C5-T1 of the spinal nerves. These nerves further form the inferior trunk, superior trunk, and middle trunk.
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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.
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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- (a) What is the function of the basal nuclei? (b) Which basal nuclei form the striatum? (c) Which arches over the diencephalon?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_forwardWhich structures unite to form a spinal nerve?arrow_forward
- 1) Motor information exits the spinal cord through the: a) anterior column. b) posterior column. c) anterior horn. d) posterior horn.arrow_forwardThe cranial nerve is actually an extension of the brain, not a nerve at all! O oculomotor (1II) O optic (II) facial (VII) O olfactory (I)arrow_forwardWhat is the source of the spinal cord's blood supply?arrow_forward
- damage to which spinal nerve might produce the following physical findings? a- inability to extend the forearm and hand......................................... b- inability to breathe............................................ c- inability to feel the skin over the anterolateral thigh....................................... d- inability to dorsiflex the foot.............................arrow_forwardTrevor was tackled while playing football. After hitting the ground, he was unable to move his lower limbs. What is a loss of motor function called? What level of his spinal cord do you think was injured (cervical, thoracic, lumbar, or sacral)? Is this a permanent injury?arrow_forwardWhat are the general shape, diameter, and length of the spinal cord, and where is it housed?arrow_forward
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