arm, elbow, cubital fossa

Question 1

biceps brachii

Answer 1

innervation: musculcutaneous nerve, insertion: radial tuberosity, origin: long head: supraglenoid tubercle of scapula, short head- coracoid process . blood supply: brachial artery action: flexion of elbow joint, supinator of arm

Question 2

brachialis

Answer 2

innervation: musculocutaneous nerve insertion: coranoid process of ulna origin: distal half of anterior humerus, blood supply: radial recurrent artery, action: flexion of forearm

Question 3

coracobrachialis

Answer 3

innervation: musculocutaneous nerve, insertion: midshaft humerus, origin: coracoid process of scapula, blood supply: brachial artery action: adducts and flexes the arm

Question 4

triceps brachii

Answer 4

innervation: radial nerve insertion: olecranon process of ulna origin- long head- lateral border of scapula, lateral head- lateral/medial humerus, medial head- posterior humerus. blood supply: deep brachial artery, action: extension of forearm and arm

Question 5

brachioradialis

Answer 5

innervation: radial nerve insertion: styloid process of radius origin: lateral supracondylar ridge of humerus blood supply: radial recurrent nerve action: flexion of forearm/ elbow supination and pronation of forearm