Explanation Reason for correct answer: Option d. is given as “lateral corticospinal tract.” Lateral corticospinal tract controls the movements of ipsilateral lima. Damage in the left side of the lateral corticospinal tract may damage the left side of the body. Hence, option d. is correct. Reason for incorrect answer: Option a. is given as,“fasciculus gracilis.” Fasciculus gracilis carry impulse from the lower side of the body, and its damage can disrupt the function of lower limbs. Hence, option a. is incorrect. Option b...

5th Edition

ISBN: 9781259285271

Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien

Publisher: McGraw-Hill Education

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Question

Chapter 17, Problem 3MC

Summary Introduction

Introduction:

The spinal cord is a tube-like structure that extends from the brainstem of the spinal cord. Two main tracts of the spinal cord are ascending tract and descending tract.

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Chapter 17, Problem 2MC

Chapter 17, Problem 4MC

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Label the following components of the corticospinal tracts with numbers 1 through 6, with 1 being the origin of the tracts and 6their destination. a. _____ Medullary pyramids where most fibers decussate b. _____ Anterior horn of the spinal gray matter c. _____ Midbrain and pons d. _____ Upper motor neurons in the primary motor andpremotor cortices e. _____ Corona radiata and internal capsule f. _____ Lateral funiculus of the spinal cord

The _______ serve the skin and musculature of the posterior body trunk at their emergence from the spinal cord; while the ventral rami of spinal nerves pass anteriorly as the __________ to supply the muscles of intercostal spaces, and the skin and muscles of the anterior and lateral trunk. A. dorsal rami, ventral rami B. dorsal rami, intercostal nerves C. dorsal root, ventral root D. nerve plexues, spinal nerves The white matter of spinal cord is bisected by fissures: the more open ventral fissure is called the ventral _____________ and the dorsal one is the shallow dorsal ______________. A. funiculus, horn B. median fissure, median sulcus C. median sulcus, median fissure D. horn, funiculus n gray matter of spinal cord, the central butterfly shaped region, contains dorsal and anterior _____; on both lateral side of the spinal cord, there are the dorsal and ventral ______ for interneurons and sensory fibers that…

Damage to the surface tissue of the spinal cord will most likely affecta. information processing within the spinal cord.b. the stimulation of sensory organs.c. communication between the peripheral nervous system and the brain.d. reflex arcs.

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. 3WYL Ch. 17 - Prob. 4WYL Ch. 17 - Prob. 5WYL Ch. 17 - Compare and contrast the upper and lower motor...Ch. 17 - What is the primary difference between direct and...Ch. 17 - Prob. 8WYL Ch. 17 - Distinguish between the activities controlled by...Ch. 17 - What is the function of the Wernicke area?

Ch. 17 - Prob. 11WYL Ch. 17 - Prob. 12WYL Ch. 17 - Prob. 13WYL Ch. 17 - What are the main differences between non-REM and...Ch. 17 - Match each number item with the most closely...Ch. 17 - Prob. 1MC Ch. 17 - Prob. 2MC Ch. 17 - Prob. 3MC Ch. 17 - Prob. 4MC Ch. 17 - Pyramidal cell axons project through corticospinal...Ch. 17 - Prob. 6MC Ch. 17 - Prob. 7MC Ch. 17 - Prob. 8MC Ch. 17 - Prob. 9MC Ch. 17 - Where are tertiary neurons located? a. extending...Ch. 17 - Prob. 1CR Ch. 17 - Prob. 2CR Ch. 17 - What are the main differences between the indirect...Ch. 17 - Prob. 4CR Ch. 17 - Prob. 5CR Ch. 17 - Prob. 6CR Ch. 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. 1DCR Ch. 17 - Prob. 2DCR

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The spinal cord is a tube-like structure that extends from the brainstem of the spinal cord. Two main tracts of the spinal cord are ascending tract and descending tract.

Solution Summary: The author explains that the lateral corticospinal tract does not result in a disruption in sensation from the lower limb.

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Introduction: The spinal cord is a tube-like structure that extends from the brainstem of the spinal cord. Two main tracts of the spinal cord are ascending tract and descending tract.

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Chapter 17 Solutions

Introduction:

The spinal cord is a tube-like structure that extends from the brainstem of the spinal cord. Two main tracts of the spinal cord are ascending tract and descending tract.