· Skin (sensation) is innervated by a single nerve roots called the dermatomes
· Muscles (movement) are innervated by singe nerve roots called myotomes
· Nerves and nerve roots are typically injured by compression or stretching forces
· When a nerve root is damaged a deficit may occur in the corresponding limb
· The evaluation of nerve root damage can be done by testing dermatomes and
myotomes
· Nerve root trauma should always be inspected by a physician
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