Question

Which region of the frontal lobe is responsible for initiating movement by directly connecting to cranial and spinal motor neurons? a. prefrontal cortex b. supplemental motor area c. premotor cortex d. primary motor cortex

Name: Problem 22, Chapter 14: Anatomy & Physiology
Uploaded: 2020-06-19T23:32:09-08:00
Duration: 32 s
Channel: Joanna Quigley
Description: Which region of the frontal lobe is responsible for initiating movement by directly connecting to cranial and spinal motor neurons? a. prefrontal cortex b. supplemental motor area c. premotor cortex d. primary motor cortex

   Which region of the frontal lobe is responsible for initiating movement by directly connecting to cranial and spinal motor neurons?
a. prefrontal cortex
b. supplemental motor area
c. premotor cortex
d. primary motor cortex

Anatomy & Physiology

J. Gordon Betts,… 1st Edition

Chapter 14, Problem 22

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Solved by Expert Joanna Quigley

06/19/2020

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This region does so by directly connecting to cranial and spinal motor neurons. Show more…

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Which region of the frontal lobe is responsible for initiating movement by directly connecting to cranial and spinal motor neurons? a. prefrontal cortex b. supplemental motor area c. premotor cortex d. primary motor cortex

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Key Concepts

Upper Motor Neuron Pathways

Upper motor neuron pathways originate from the motor areas of the frontal lobe, especially the primary motor cortex, and descend to synapse with lower motor neurons in the brainstem and spinal cord. This pathway is fundamental in transmitting motor commands that result in precise and coordinated muscle movements.

Frontal Lobe Anatomy

The frontal lobe is a critical region of the brain that houses several functional areas responsible for higher cognitive functions and control of voluntary movements. Its subdivisions, including various motor-related cortices, work together to plan, initiate, and regulate motor activities.

Primary Motor Cortex

The primary motor cortex is located in the frontal lobe and is directly responsible for initiating voluntary movement. It achieves this by sending signals directly to the cranial and spinal motor neurons, thus playing a pivotal role in the execution of motor commands.

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