Muscles of the Anterior and Posterior Arm Flashcards
Coracobrachialis origin
coracoid process
Coracobrachialis insertion
mid medial border of humerus
Coracobrachialis nerve
musculocutaneous
Coracobrachialis action
adducts and flexes arm
Biceps brachii origin
long head: supraglenoid tubercles; short head: coracoid process
Biceps brachii insertion
radial tuberosity (primary), bicipital aponeurosis (secondary)
Biceps brachii nerve
musculocutaneous
Biceps brachii action
flex and supinate forearm; flex and adduct arm
Brachialis origin
inferior 2/3 of anterior surface of humerus
Brachialis insertion
coronoid process of ulna
Brachialis nerve
musculocutaneous
Brachialis action
flex forearm
Triceps brachii origin
long head: lateral border of scapula; lateral head: posterior surface of the humerus; medial head: posterior surface of the humerus
Triceps brachii insertion
olecranon of ulna
Triceps brachii nerve
radial
