XI Accessory Flashcards
1
Q
origin & level of accessory nerve
A
nucleus ambiguus & disperse cell bodies (medulla & cervical segments)
1
Q
where does accessory nerve exit the brain?
A
post-olivary sulcus
2
Q
branches of accessory nerve
A
splits into cranial & spinal root
3
Q
function of cranial accessory nerve
A
joins vagus to supply muscles of pharynx, larynx & soft palate
4
Q
function of spinal accessory nerve
A
motor to SCM and trapezius mm
5
Q
lesion of accessory nerve
A
inability to rotate head to opposite side and shrug shoulders
6
Q
CN IX, X, and XI exit the skull via the ____
A
jugular foramen
