Lab 3 Flashcards
Origin of Biceps Brachii
short head- coracoid process of scapula
long head- supraglenoid tubercle of scapula
Insertion of Biceps Brachii
tendon- radial tuberosity
biceptial aponeurosis- deep fascia on ulna
Action of Biceps Brachii
both heads- supination of forearm, flexion of elbow
short head- also flexion of elbow
long head- aBduction of externally rotated shoulder
Nerve Supply of Biceps Brachii
musculocutaneous nerve
blood supply of Biceps Brachii
brachial artery
Origin of Coracobrachialis
Tip of coracoid process of scapula
Insertion of Coracobrachialis
Middle 1/3rd of humerus
Action of Coracobrachialis
Flexion of shoulder
aDDuction of shoulder
Nerve Supply of Coracobrachialis
Musculocutaneous Nerve
Blood Supply of Coracobrachialis
Brachial Artery
Origin of Brachialis
Lower half of anterior humerus
Insertion of Brachialis
Ulnar tuberosity
coronoid process of ulna
Action of brachialis
flexion of elbow
Nerve Supply of Brachialis
musculocutaneous nerve
Blood Supply of Brachialis
brachial artery
Origin of Triceps Brachii
long head- infragelnoid tubercle of scapula
lateral head- posterior humerus above spiral groove
medial head- posterior humerus bleow spinal groove
insertion of triceps brachii
Olecranon Process of Ulna
Action of triceps brachii
all heads- extension of elbow
long head only*- extension of shoulder
Nerve Supply of Triceps Brachii
Radial Nerve
Blood Supply of Triceps Brachii
Brachial Profunda Artery