Explanation Reason for correct answers: Option c. is given as, “Corticobulbar tracts.” Corticobulbar tract originates from the pyramidal cells of the primary motor cortex and axons project either into the brainstem or into the spinal cord to synapse directly on lower motor neurons. This makes it a part of the direct motor pathway. Hence, options c. is correct Reason for incorrect answer: Option a. is given as, “rubrospinal tract.” Rubrospinal tract is a part of the indirect motor pathway. This originates in the magnocellular red nucleus and descends in the lateral part of the brainstem tegmentum...

14th Edition

ISBN: 9781259349461

Author: McKinley

Publisher: MCG CUSTOM

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Question

Chapter 17, Problem 4MC

Summary Introduction

Introduction:

The central nervous system is the processing unit of the body, and the neurons are the conducting units that transmit the information from the receptors to the CNS and from the CNS to the target organs. There are three different types of neurons, namely sensory neurons, interneurons and motor neurons.

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Chapter 17, Problem 3MC

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Chapter 17 Solutions

HUMAN ANAT+CNCT+POLLEV LBCC >IC<

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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Solution Summary: The author explains that corticobulbar tracts originate from the pyramidal cells of the primary motor cortex and axons project either into the brainstem or the spinal cord to synapse directly on lower

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