Brachial Plexus Nerve Actions Flashcards
1
Q
Long Thoracic n.
A
protract scapula
superior rotation of scapula (upward rotation)
2
Q
dorsal scapular n.
A
retract scapula
elevate scapula
inferior rotation of scapula (downward rotation)
3
Q
suprascapular n.
A
initiates abduction of arm
lateral rotation
stabilizes glenohumeral joint
4
Q
lateral and medial pectoral n.
A
flex arm adduct arm medial rotation protract scapula assists with depression of shoulder
5
Q
lower and upper subscapular n.
A
adduct arm
medial rotation
stabilize glenohumeral joint
6
Q
middle sub scapular (thoracodorsal) n.
A
adduct arm
extend arm
medial rotation
7
Q
axillary n.
A
abduct arm extend arm flex arm medial rotation lateral rotation stabilize glenohumeral jt.
8
Q
musculocutaneous n.
A
flex arm
flex forearm
supinate forearm
adduct arm
9
Q
radial n.
A
extend arm extend forearm flex forearm extend wrist abduct wrist adduct wrist extend 2-5 fingers extend thumb abduct thumb supination
10
Q
median n.
A
flex fingers 2-5 flex thumb abduct thumb opposition of thumb flex wrist abduct wrist pronate forearm flex forearm extension of 2nd, 3rd digit IP
11
Q
ulnar n.
A
flex fingers 2-5 abduct fingers 2-5 adduct fingers 2-5 flex wrist flex thumb adduct wrist adduct thumb opposition of 5th digit extension of 4th, 5th digit IP
