FUND ANAT&PHYSIO W/LAB MANUAL & CD
FUND ANAT&PHYSIO W/LAB MANUAL & CD
11th Edition
ISBN: 9780135284575
Author: Martini
Publisher: PEARSON
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Chapter 15, Problem 12CP
Summary Introduction

To determine:

The region of the body affected by the injury on the superior portion of the motor cortex.

Introduction:

The active motor cortex is responsible for the movement of peripheral muscles in the body. The activity of motor cortex depends upon the activation of pyramidal cells.

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Explain the descending pathway from the brain where Mr. D decides to move his right leg to the actual movement of his quadriceps. (Use complete sentences.) Use key words in this order: primary motor cortex in precentral gyrus, frontal lobe, descending tract, decussate, ventral horn with motor neuron in lumbar spinal cord, ventral root, spinal nerve, sciatic nerve in lumbosacral plexus, muscles to move leg (ie. quadriceps)to take a step.
An injury to the superior portion of the primary motor cortex would affect the ability to control muscles of which parts of the body?
Explain the descending pathway from the brain where Mr. Dexter decides to move his right leg to the actual movement of his quadriceps. (Use complete sentences.) Use key words in this order: primary motor cortex in precentral gyrus, frontal lobe, descending tract, decussate, ventral horn with motor neuron in lumbar spinal cord, ventral root, spinal nerve, sciatic nerve in lumbosacral plexus, muscles to move leg (ie. quadriceps)to take a step.
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