Cervical Plexus Flashcards
0
Q
sensory innervation
A
greater occipital (C2, C3) lesser occipital (C2) greater auricular (C2, C3) dorsal rami of C3, C4, & C5 transverse cutaneous of neck (C2, C3)
1
Q
areas involved
A
C1-C5 lesser occipital nerve great auricular nerve phrenic nerve supraclavicular nerve inferior root of ansa cervicalis transverse cervical nerve superior root of ansa cervicalis
2
Q
technique step 1
A
head to opposing side
3
Q
technique step 2
A
draw line from tip of mastoid process of temporal bone to the anterior tubercle of C6 (Chassaignac’s Tubercle)
4
Q
technique step 3
A
using 22g needle, penetrate the skin over each point contacting transverse process
5
Q
technique step 4
A
NO blood or CSF should be aspirated
6
Q
technique step 5
A
Inject 3-5 ml/level (remember 4 ml)
7
Q
complications
A
phrenic nerve block (hiccups)
Horner’s syndrome
hoarseness (recurrent laryngeal nerve)
accidental intrathecal or epidural injection
8
Q
Horner’s syndrome
A
ptosis, miosis, anhydrosis, enophthalmosis, scleral hyperemia, facial flushing, nasal congestion
9
Q
landmark based anatomy
A
Mastoid process, C2, C3, C4, posterior border of sternocleidomastoid muscle
