PPT Slide

R

L

Primary Motor Cortex

Striatum

Substantia

nigra

control of movement

on the left side of the

body

The brain is organized

bilaterally--with similar

brain structures present

on right and left sides.

Substantia nigra

provides an

important source

of dopamine to

the striatum

In most instances, motor

control is contralateral such

that the right primary motor

cortex controls movements

on the left side of the body.

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