Muscles of Arm Flashcards
Biceps brachii (short head) - P
tip of coracoid process of scapula
Biceps brachii (long head) - P
supraglenoid tubercle of scapula and some fibers insert into labrum
Biceps brachii - D
tuberosity of radius and fascia of forearm via bicipital aponeurosis
Biceps brachii - N
musculocutaneous nerve
Biceps brachii - A
forearm supination
elbow flexion when supinated
shoulder flexion
short head resists dislocation of shoulder
Brachialis - P
distal half of anterior surface of humerus
Brachialis - D
coronoid process and tuberosity of ulna
Brachialis - N
musculocutaneous nerve
Brachialis - A
elbow flexion in all positions
Coracobrachialis - P
tip of coracoid process of scapula
Coracobrachialis - D
middle third of medial surface of humerus
Coracobrachialis - N
musculocutaneous nerve
Coracobrachialis - A
assist shoulder flexion
assist shoulder adduction
resists dislocation of shoulder
Triceps brachii (long head) - P
infraglenoid tubercle of scapula
Triceps brachii (lateral head) - P
posterior surface of humerus, superior to radial groove
Triceps brachii (medial head) - P
posterior surface of humerus, inferior to radial groove
Triceps brachii - D
olecranon of ulna and fascia of forearm
Triceps brachii - N
radial nerve
Triceps brachii - A
elbow extension (chief extensor) long head: shoulder extension and resists dislocation of humerus (especially important in ABduction)
Anconeus - P
lateral epicondyle of humerus
Anconeus - D
lateral surface of olecranon and superior part of posterior surface of ulna
Anconeus - N
radial nerve
Anconeus - A
assists triceps in elbow extension
stabilizes elbow
ABducts ulna during pronation
