Flashcards in PNS Deck (10):
What do posterior rami of spinal nerves innervate
intrinsic muscles and skin of the back
what is a dermatome?
an area of skin that is supplied (mostly) by a single spinal nerve
which nerve carries sensation of the face
which spinal levels contribute to the brachial plexus
True or False: terminal branches give off their motor branches first, then cutaneous sensory branches will go to wkin
If sensory loss follows the pattern of a dermatome, where is the lesion likely to be relative to the spinal cord?
close to the spinal cord, proximal (nerve root) damage
If the sensory loss follows the pattern of a cutaneous field, where is the lesion likely to be relative to the spinal cord?
Indicative of distal (cutaneous nerve) damage
What are the movements of the thumb?
flex, ext, abd, add, opposition
What is a myotome?
the muscle(s) served by a single nerve root; (some spinal nerves have a greater influence on a muscle than others)