Shoulder movement

1. What are the 4 muscles responsible for shoulder flexion?
2. What are 5 muscles responsible for shoulder extension?
3. What are 2 muscles responsible for shoulder abduction?
4. What are 7 muscles responsible for shoulder adduction?
5. What are 5 muscles responsible for internal rotation of the shoulder?
6. What are 4 muscles responsible for external rotation of the shoulder?

Answers:
1. Deltoid, pectoralis major, biceps brachii, coracobrachialis.
2. Deltoid, triceps, latissimus dorsi, teres major, pectoralis major.
3. Supraspinatus and deltoid.
4. Pectoralis major, triceps, coracobrachialis, infraspinatus, teres major, latissimus dorsi, deltoid.
5. Subscapularis, pectoralis major, latissimus dorsi, anterior deltoid, teres major. (SPLAT)
6. Infraspinatus, teres minor, deltoid, supraspinatus.