Explanation Reason for correct answer: Option a. is given as “precentral gyrus.” Central sulcus present in the hemisphere separates the precentral gyrus from cerebral hemisphere, and primary central cortex is located in this gyrus of the cerebral hemisphere. Hence, option a. is correct. Reason for incorrect answer: Option b. is given as “postcentral gyrus.” Postcentral gyrus is present in the parietal lobe of the cerebral hemisphere and does not contain primary motor cortex. Hence, 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 15, Problem 8MC

Summary Introduction

Introduction:

The motor cortex region of the cerebral hemisphere is divided into the premotor cortex, supplementary motor area, and primary motor cortex. Motor cortex region controls the voluntary movements of the human body.

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Chapter 15, Problem 7MC

Chapter 15, Problem 9MC

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The motor cortex region of the cerebral hemisphere is divided into the premotor cortex, supplementary motor area, and primary motor cortex. Motor cortex region controls the voluntary movements of the human body.

Solution Summary: The author explains that the precentral gyrus is the cerebral structure which contains primary motor cortex.

Concept explainers

Introduction: The motor cortex region of the cerebral hemisphere is divided into the premotor cortex, supplementary motor area, and primary motor cortex. Motor cortex region controls the voluntary movements of the human body.

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Chapter 15 Solutions

Introduction:

The motor cortex region of the cerebral hemisphere is divided into the premotor cortex, supplementary motor area, and primary motor cortex. Motor cortex region controls the voluntary movements of the human body.