Flashcards in L03 Neurophysiology II: The Action Potential Deck (12)
what is the neurophysiology of multiple sclerosis?
demyelination of CNS axons
what is the neurophysiology of guillain-barreé syndrome?
demyelination of PNS axons
how does lidocaine work as a local anesthetic?
it binds to the inside of VG Na+ channels so it needs to enter through open channels first to access the binding site. thus, it selects for fibres with the most open VG Na channels. these are most common in thin, unmyelinated pain fibres.
physical location of C6 dermatome?
physical location of C7 dermatome?
physical location of C8 dermatome?
innervation of ulnar nerve?
pinky, medial side of ring finger
innervation of median nerve?
palmar side: thumb, index, middle, lateral ring
dorsal side: thumb, index
innervation of radial nerve?
thenar muscle area of palm
what's the C3-C5 group for?
what's the T1-L2 group for?
sympathetic preganglionic neurons for visceral function and skin regulation