Anterior and posterior compartment of the arm

Question 1

Origin of the biceps brachii

Answer 1

SHORT HEAD: coracoid process

LONG HEAD: supraglenoid tubercle

Question 2

insertion of the biceps brachii

Answer 2

radial tuberosity + bicipital aponeurosis

Question 3

action of the biceps brachii

Answer 3

flexion and supinator of forearm

flexion of arm

Question 4

innervation of the biceps brachii

Answer 4

musculocutaneous nerve

Question 5

origin of the coracobrachialis

Answer 5

coracoid process

Question 6

insertion of the coracobrachialis

Answer 6

medial surface of humeral shaft

Question 7

action of the coracobrachialis

Answer 7

flexion and adduction of arm

Question 8

innervation of the coracobrachialis

Answer 8

musculocutaneous nerve

Question 9

origin of brachialis

Answer 9

lower half of humeral shaft

Question 10

insertion of brachialis

Answer 10

coronoid process + tuberosity of the ulna

Question 11

action of brachialis

Answer 11

flexion of the forearm

Question 12

innervation of brachialis

Answer 12

musculocutaneous nerve

Question 13

origin of the triceps brachii

Answer 13

LONG HEAD: scapula
LATERAL HEAD: posterior humeral shaft below radial groove
MEDIAL HEAD: posterior humeral shaft above radial groove

Question 14

insertion of the triceps brachii

Answer 14

upper surface of the olecranon of the ulna

Question 15

action of the triceps brachii

Answer 15

extension of the forearm at elbow

extension and adduction of arm at shoulder

Question 16

innervation of the triceps brachii

Answer 16

radial nerve