Arm Flashcards
Biceps Brachii Origin
Long head: supraglenoid tubercle (fixed in intertubercular groove by transverse humeral ligament)
Short head: coracoid process
Biceps Brachii Insertion
Radial tuberosity and bicipital aponeurois
Biceps Brachii Function
Flex arm and forearm
Supinate when elbow is flexed
Biceps Brachii Innervation
Musculocutaneous
Brachialis Origin
Distal half of humerus
Brachialis Insertion
Coronoid process and ulnar tuberosity
Brachialis Function
Flex elbow
Brachialis Innervation
Musculocutaneous
Coracobrachialis Origin
Coracoid process
Coracobrachialis Insertion
Coronoid process and ulnar tuberosity
Coracobrachialis Function
Flex
Adduct
Stabilize glenohumeral joint
Coracobrachialis Innervation
Musculocutaneous
Triceps Brachii Origin
Infraglenoid tubercle - long head
Superior to radial groove - lateral head
Inferior to radial groove - medial head
Triceps Brachii Insertion
Olecranon of ulna
Triceps Brachii Function
Extends
Long head - stabilizes adducted GH joint
Adducts