Shoulder and upper extremity anatomy Flashcards
Coracobrachialis
o: coracoid process
i: anteromedial surface of humerus
a: weak flexion and adduction of shoulder
Biceps brachii
o: supraglenoid tubercle, coracoid process
i: head of radius
a: shoulder and elbow flexion, supination
Brachialis
o: anterior surface of distal 1/2 of humerus
i: coronoid process of ulna
a: flexes elbow
Brachoradialis
o: distal 1/3 of lat humerus
i: styloid process
a: flexes forearm
Triceps
o: infraglenoid process posterior humerus
i: olecranon
a: extends shoulder and elbow
Supraspinatus
o: supraspinous fossa
i: greater tubercle of humerus
a: abduction
Infraspinatus
o: infraspinous fossa
i: greater tubercle
a: external rotation, adduction
Teres minor
o: lateral border of scap
i: greater tubercle
a: external rotation, adduction
Subscapularis
o: subscapular fossa
i: lesser tubercle
a: internal rotation
Anconeus
o: lateral epicondyle of humerus
i: lateral portion of olecranon
a: extension of forearm
Supinator
o: lateral epicondyle of humerus
i: lateral shaft of proximal radius
a: supination
Pronator teres
o: medial epicondyle of humerus
i: lateral shaft of radius
a: pronation
Pec major
o: medial clavicle, sternum and 1-6 ribs
i: bicipital groove
a: flexion, adduction, medial rotation of humerus
Pec minor
o: 3-5 ribs
i: coracoid process
a: protraction of scap
