LooseLeaf for Human Anatomy
5th Edition
ISBN: 9781259285271
Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien
Publisher: McGraw-Hill Education
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Chapter 17, Problem 2MC
Summary Introduction
Introduction:
The spinal cord contains a large number of nerves that control the movements of the body. Two main tracts of the spinal cord are ascending tract and descending tract. These tracts may enter the brain or leave the brain
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All of the following are true regarding the descending motor tracts EXCEPT
which one?
A. They originate in either the cerebral cortex or brainstem.
B. The pathways are generally made of a two-neuron system.
C. The upper motor neuron fibers target lower motor neurons of the spinal cord or
cranial nerves.
D. They are involved in assisting with voluntary movement.
The motor tracts that conduct impulses to regulate the skilledmovements of the upper and lower limbs are thea. reticulospinal tracts.b. corticospinal tracts.c. rubrospinal tracts.d. tectospinal tracts.
Which of these tracts carries motor signals destined for the postural muscles? a. the gracile fasciculus b. the cuneate fasciculus c. the spinothalamic tract d. the vestibulospinal tract e. the tectospinal tract
Chapter 17 Solutions
LooseLeaf for Human Anatomy
Ch. 17 - What is meant by somatotopy?Ch. 17 - What information is conducted by sensory pathways?Ch. 17 - Prob. 3WYLCh. 17 - Prob. 4WYLCh. 17 - Prob. 5WYLCh. 17 - Compare and contrast the upper and lower motor...Ch. 17 - What is the primary difference between direct and...Ch. 17 - Prob. 8WYLCh. 17 - Distinguish between the activities controlled by...Ch. 17 - What is the function of the Wernicke area?
Ch. 17 - Prob. 11WYLCh. 17 - Prob. 12WYLCh. 17 - Prob. 13WYLCh. 17 - What are the main differences between non-REM and...Ch. 17 - Match each number item with the most closely...Ch. 17 - Prob. 1MCCh. 17 - Prob. 2MCCh. 17 - Prob. 3MCCh. 17 - Prob. 4MCCh. 17 - Pyramidal cell axons project through corticospinal...Ch. 17 - Prob. 6MCCh. 17 - Prob. 7MCCh. 17 - Prob. 8MCCh. 17 - Prob. 9MCCh. 17 - Where are tertiary neurons located? a. extending...Ch. 17 - Prob. 1CRCh. 17 - Prob. 2CRCh. 17 - What are the main differences between the indirect...Ch. 17 - Prob. 4CRCh. 17 - Prob. 5CRCh. 17 - Prob. 6CRCh. 17 - Explain the process by which something may be...Ch. 17 - Describe the activities of the reticular...Ch. 17 - Compare and contrast the amount of sleep infants,...Ch. 17 - What is the consequence of reduction in the number...Ch. 17 - Prob. 1DCRCh. 17 - Prob. 2DCR
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