Brachial Plexus Flashcards
1
Q
Brachial Plexus in relation to other structures
A
- emerges between anterior and middle scalenes
- runs alongside subclavian artery
- posterior to SCM
- posterior to clavicle
2
Q
Brachial plexus origination
A
C5-T1
3
Q
Dorsal Scapular
A
C4, C5
innervates rhomboids and levator scapulae
4
Q
Phrenic nerve
A
C3, C4, C5
innervates diaphragm
5
Q
Long thoracic
A
C5, C6, C7, C8
- innervates serratus anterior
6
Q
Subclavius
A
(C4?,C5 - C6)
innervates subclavius
7
Q
Suprescapular
A
(C4?,C5 - C6)
supplies supraspinatus and infraspinatus
- passes through suprascapular notch
8
Q
5 major terminal branches
A
Axillary
Radial
Musculocutaneous
Median
Ulnar
9
Q
Pectoral branches
A
Lateral C5-C8
Medial C8-T1
innervates pec maj/min
10
Q
Upper/lower subscapular nerve
A
C5-C7
innervates subscapularis (rotator cuff) and teres major
11
Q
Thoracodorsal
A
C6-C8
innervates lat. dorsi
12
Q
thoracic outlet syndrome
A
compresison of neurovascular structures
