Summary of Muscle Action for the Shoulder Joint Flashcards
1
Q
What muscles flex?
A
anterior deltoid, pectoralis major (clavicular)
2
Q
What muscles extend?
A
posterior deltoid, latissimus dorsi, teres major, pectoralis major (sternal)
3
Q
What muscles hyperextend?
A
latissimus dorsi, posterior deltoid
4
Q
What muscles abduct?
A
deltoid, supraspinatus
5
Q
What muscles adduct?
A
pectoralis major, teres major, latissimus dorsi
6
Q
What muscles horizontally abduct?
A
posterior deltoid, infraspinatus, teres minor
7
Q
What muscles horizontally adduct?
A
pectoralis major, anterior deltoid
8
Q
What muscles laterally rotate?
A
infraspinatus, teres minor, posterior deltoid
9
Q
What muscles medially rotate?
A
latissimus dorsi, teres major, subscapularis, pectoralis major, anterior deltoid
