brachial plexus Flashcards
1
Q
roots (5)
A
comprised of ventral rami of spinal nerves C5-T1
2
Q
upper trunk
A
C5-C6
3
Q
middle trunk
A
C7
4
Q
lower trunk
A
C8-T1
5
Q
Divisions (6)
A
1 anterior and 1 posterior from each trunk
6
Q
lateral cord
A
compromised of anterior divisions of upper and middle trunks
7
Q
posterior cord
A
compromised of the posterior divisions of all 3 trunks
8
Q
medial cord
A
continuation of the anterior division of lower trunk
9
Q
branches
A
from rami, trunks, cords and 5 terminal branches formed by continuation of cords
10
Q
dorsal scapular branch from rami
A
C5
11
Q
long thoracic branch from rami
A
C5-C7
12
Q
branch from upper trunk
A
suprascapular
13
Q
branch from lateral cord
A
lateral pectoral
14
Q
branches from medial cord
A
- medial pectoral
- medial brachial cutaneous
- medial ante brachial cutaneous
15
Q
branches from posterior cord
A
- upper sub scapular
- thoracodorsal
- lower subscapular