brachium Flashcards
pa: biceps brachii (SHB)
coracoid process
da: biceps brachii
radial tuberosity
forearm fascia via bicipital aponeurosis
nerve innervation: biceps brachii
musculocutaneous nerve C5, C6, C7
pa: biceps brachii (LHB)
supraglenoid tubercle
labrum
muscle actions: biceps brachii
elbow flexion
forearm supination
SHB resists dislocation of shoulder
main contributor to elbow flexion when forearm is supinated
pa: coracobrachialis
coracoid process of scapula
da: coracobrachialis
middle humerus
nerve innervation: coracobrachialis
musculocutaneous nerve C5, C6, C7
muscle actions: coracobrachialis
helps with…
arm flexion
arm adduction
resists dislocation of shoulder
pa: brachialis
distal anterior humerus
da: brachialis
ulnar tuberosity
coronoid process of ulna
nerve innervation: brachialis
musculocutaneous nerve C5, C6
small branch from radial nerve C5, C7
muscle actions: brachialis
elbow flexion
(in all positions, strongest elbow flexor!)
main contributor to elbow flexion when forearm is pronated
pa: triceps brachii (LHT)
infraglenoid tubercle of scapula
pa: triceps brachii (lateral head)
posterior surface of humerus (superior to radial groove)