HUMAN ANATOMY
6th Edition
ISBN: 9781260210262
Author: SALADIN
Publisher: RENT MCG
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Chapter 14, Problem 2TYC
Summary Introduction
To analyze:
The spinal tract injury and the reason for the losses on the opposite side of the body.
Introduction:
Dissociated sensory loss is neurological damage in the single tract of the spinal cord due to a lesion. The condition results in loss of proprioception, fine touch and selective loss of temperature and pain.
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Wallace is the victim of a hunting accident. A bullet grazed his vertebral column, and bone fragments severed the left half of his spinal cord at segments T8 through T10. Since the accident, Wallace has had a conditioncalled dissociated sensory loss, in which he feels no sensations of deep touch or limb position on the left side of his body below the injury, and no sensations of pain or heat from the right side. Explain what spinal tract(s) the injury has affected and why these sensory losses are on opposite sides of the body.
Complete transection of the spinal cord produces all of the following effects, except :-a- permanent loss of all sensations mediated by the cord below level of lesionb- permanent loss of voluntary movements by muscles innervated by the cord below level of lesionc- permanent loss of reflexes mediated by the cord below level of lesiond- temporary loss of micturition reflexes
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.............................
Chapter 14 Solutions
HUMAN ANATOMY
Ch. 14.1 - Prob. 1AWYKCh. 14.1 - Prob. 1BYGOCh. 14.1 - Prob. 2BYGOCh. 14.1 - Prob. 3BYGOCh. 14.1 - Prob. 4BYGOCh. 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. 6BYGOCh. 14.2 - Prob. 7BYGOCh. 14.2 - List the five plexuses of spinal nerves and state...
Ch. 14.2 - State which plexus gives rise to each of the...Ch. 14.3 - Prob. 1AWYKCh. 14.3 - Prob. 10BYGOCh. 14.3 - Prob. 11BYGOCh. 14.3 - Describe a situation in which each of the...Ch. 14.4 - Prob. 1AWYKCh. 14.4 - Prob. 13BYGOCh. 14.4 - Prob. 14BYGOCh. 14.4 - Prob. 15BYGOCh. 14 - Four functions of the spinal cord and their...Ch. 14 - Prob. 14.1.2AYLOCh. 14 - Prob. 14.1.3AYLOCh. 14 - Prob. 14.1.4AYLOCh. 14 - Prob. 14.1.5AYLOCh. 14 - Prob. 14.1.6AYLOCh. 14 - Prob. 14.1.7AYLOCh. 14 - Prob. 14.1.8AYLOCh. 14 - The funiculi and tracts of spinal white matterCh. 14 - Prob. 14.1.10AYLOCh. 14 - Prob. 14.1.11AYLOCh. 14 - Prob. 14.1.12AYLOCh. 14 - Prob. 14.1.13AYLOCh. 14 - Prob. 14.2.1AYLOCh. 14 - The differences between afferent and efferent...Ch. 14 - Prob. 14.2.3AYLOCh. 14 - Prob. 14.2.4AYLOCh. 14 - The number of spinal nerves and the system for...Ch. 14 - The structure of the proximal portion of a spinal...Ch. 14 - Prob. 14.2.7AYLOCh. 14 - The five plexuses of spinal nerves-their names,...Ch. 14 - Prob. 14.3.1AYLOCh. 14 - The components of a reflex arc and the path...Ch. 14 - Prob. 14.3.3AYLOCh. 14 - The differences between ipsilateral,...Ch. 14 - Prob. 14.3.5AYLOCh. 14 - Prob. 14.4.1AYLOCh. 14 - Prob. 14.4.2AYLOCh. 14 - Prob. 14.4.3AYLOCh. 14 - Below L2, the vertebral canal is occupied by a...Ch. 14 - The brachial plexus gives rise to all of the...Ch. 14 - Prob. 3TYRCh. 14 - Prob. 4TYRCh. 14 - Prob. 5TYRCh. 14 - Prob. 6TYRCh. 14 - In the spinal cord, the neurosomas of the lower...Ch. 14 - Prob. 8TYRCh. 14 - Prob. 9TYRCh. 14 - Prob. 10TYRCh. 14 - Prob. 11TYRCh. 14 - Prob. 12TYRCh. 14 - Prob. 13TYRCh. 14 - Motor innervation of the leg proper comes...Ch. 14 - Prob. 15TYRCh. 14 - The _______ nerves arise from the servical plexus...Ch. 14 - The crossing of a nerve fiber actract from the...Ch. 14 - Prob. 18TYRCh. 14 - Prob. 19TYRCh. 14 - Prob. 20TYRCh. 14 - Prob. 1BYMVCh. 14 - Prob. 2BYMVCh. 14 - Prob. 3BYMVCh. 14 - Prob. 4BYMVCh. 14 - State a meaning of each word element and give a...Ch. 14 - Prob. 6BYMVCh. 14 - Prob. 7BYMVCh. 14 - Prob. 8BYMVCh. 14 - Prob. 9BYMVCh. 14 - Prob. 10BYMVCh. 14 - Prob. 1WWWTSCh. 14 - Prob. 2WWWTSCh. 14 - Prob. 3WWWTSCh. 14 - Briefly explain why each of the following...Ch. 14 - Prob. 5WWWTSCh. 14 - Prob. 6WWWTSCh. 14 - Prob. 7WWWTSCh. 14 - Briefly explain why each of the following...Ch. 14 - Prob. 9WWWTSCh. 14 - Briefly explain why each of the following...Ch. 14 - Prob. 1TYCCh. 14 - Prob. 2TYCCh. 14 - Anthony gets into a fight between rival gangs. As...Ch. 14 - When a patient needs a tendon graft, surgeons...
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- your patient, Mr. Pratchett, is unable to open his eyelid. on examination, you find that his pupil is dilated, and he is unable to move his affected eye in any direction except laterally and downward, indicating that only his lateral rectus and superior oblique extrinsic eye muscles are functioning. based on this information, which cranial nerve do you think is involved in Mr. Pratchett's condition? explain your reasoningarrow_forwardAn individual sustains injuries to only the ascending tract of the spinal cord.will this person experience deficits in movement,sensation,both or neither?explain.arrow_forwardDuring the exam, you notice the patient has a poor downward gaze when the eye is medially located. The patient is unable to look at their nose for any length of time. Which cranial nerve is most likely impaired?arrow_forward
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