Arm Flashcards
Biceps brachii origin
Short head: coracoid process of scapula; Long head: supraglenoid tubercle of scapula
Coracobrachialis origin
Coracoid process of scapula
Brachialis origin
Anterior surface of the humerus (distal half)
Triceps brachii origin
Long head: infraglenoid tubercle of scapula; Lateral head: posterior humerus superior to radial groove; Medial head: posterior humerus inferior to radial groove
Biceps brachii insertion
Radial tuberosity on radius, antebrachial fascia via bicipital aponeurosis
Coracobrachialis insertion
Medial surface of humerus (midway)
Brachialis insertion
Ulnar tuberosity
Triceps brachii insertion
Olecranon of ulna
Biceps brachii innervation
Musculocutaneous nerve
Coracobrachialis innervation
Musculocutaneous nerve
Brachialis innervation
Musculocutaneous nerve
Triceps brachii innervation
Radial nerve
Biceps brachii action
Supinates and flexes forearm
Coracobrachialis action
Adducts and flexes arm
Brachialis action
Flexes forearm