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Flashcards in PNS Deck (10):
1

What do posterior rami of spinal nerves innervate

intrinsic muscles and skin of the back

2

what is a dermatome?

an area of skin that is supplied (mostly) by a single spinal nerve

3

which nerve carries sensation of the face

trigeminal nerve

4

which spinal levels contribute to the brachial plexus

C5-T1

5

True or False: terminal branches give off their motor branches first, then cutaneous sensory branches will go to wkin

True

6

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

7

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

8

What are the movements of the thumb?

flex, ext, abd, add, opposition

9

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)

10

Which spinal nerve levels contribute the most to the following movements: arm abd, flex, ext; finger flex, abd/add

C5, C6, C7, C8, T1