Shoulder Flashcards
Type of joint
- synovial ball & socket
- multiaxial
Name the abductors of the arm
- supraspinatus
- deltoid
Supraspinatus O & I
O = supraspinatus fossa
I = greater tubercle of humerus
Deltoid O & I
O = anterior - lateral third of clavicle, middle - acromion of scapula, posterior - spine of scapula
I = deltoid tuberosity of humerus
Name the adductors of the arm
- coracobracialis
- pectoralis major
- latissimus dorsi
- teres major
Coracobrachialis O & I
O = coracoid process
I = anteromedial surface of the humeral shaft
Pectoralis major O & I
O = anterior surface of medial half of clavicle, anterior surface of sternum & costal cartilage of ribs 1-6
I = crest of greater tubercle of humerus
Latissimus dorsi O & I
O = spinous process T7-T12, crest of ilium, ribs 9-12, inferior angle of scapula
I = inter-tubercular sulcus of the humerus
Teres major O & I
O = inferior angle & lower part of lateral border of scapula
I = inter-tubercular sulcus of the humerus
Name the flexors of the arm
- pectoralis major
- deltoid (anterior)
- biceps brachii (long head)
Biceps brachii (long head) O & I
O = long head - supraglenoid tubercle of scapula
I = radial tuberosity of radius
Name the extensors of the arm
- latissimus dorsi
- teres major
- pectoralis major
- deltoid (posterior)
- triceps (long head)
Triceps (long head) O & I
O = infraglenoid tubercle of scapula
I = olecranon of ulna & fascia of forearm
Name the medial rotators of the arm
- subscapularis
- teres major
- latissimus dorsi
- pectoralis major
- deltoid (anterior)
Subscapularis O & I
O = subscapular fossa of scapula
I = lesser tubercle of humerus
