brachial plexus Flashcards
what nerve roots make up the middle trunk
C7
what nerve roots make up the superior trunk
C5 and C6
what nerve roots make up the inferior trunk
C8 and T1
what branch comes off of C5 at the nerve root
dorsal scapular nerve
what branch comes off of T1 at the nerve root
first intercostal nerve
what branch comes off at C5, C6, and C7 at the nerve roots
long thoracic nerve
what two branches comes off of the superior trunk
suprascapular nerve and subclavius nerve
how many division are there in the brachial plexus
6
3 anterior
3 posterior
what two divisions make up the lateral cord
anterior divisions of the superior and middle trunks
what divisions make up the posterior cord
all three posterior divisions
what divisions make up the medial cord
the anterior division from the inferior trunk
what branches off from the lateral cord
lateral pectoral nerve
what branches off from the posterior cord
lower subscapular nerve
upper subscapular nerve
thoracodorsal nerve
what branches off from the medial cord
medial pectoral nerve
medial brachial cutaneous nerve
medial ante brachial cutaneous nerve
what connects the medial and lateral pectoral nerves
ansa pectoralis
