Mod 4: Arm Muscle Chart

Question 1

Proximal attachment of biceps brachii?

Answer 1

supraglenoid tubercle - long head
coracoid - short head

Question 2

Distal attachment of biceps brachii?

Answer 2

radial tuberosity

Question 3

Proximal attachment of coracobrachialis?

Answer 3

coracoid

Question 4

Distal attachment of coracobrachialis?

Answer 4

anterior, medial humerus

Question 5

Proximal attachment of brachialis?

Answer 5

anterior humerus

Question 6

Distal attachment of brachialis?

Answer 6

ulnar tuberosity

Question 7

Proximal attachments of triceps?

Answer 7

infraglenoid tubercle (long head)

posterior humerus lateral and medial to radial groove (lateral and medial head)

Question 8

Distal attachment of triceps?

Answer 8

olecranon of ulna

Question 9

Proximal attachment of aconeus m?

Answer 9

lateral epicondyle

Question 10

Distal attachment of aconeus m?

Answer 10

olecranon of ulna

Question 11

Action of biceps brachii m?

Answer 11

flexion of elbow

supination of forearm

flexion of humerus and glenohumeral

Question 12

Action of coracobrachialis?

Answer 12

flexion and adduction of the humerus and glenohumeral

Question 13

Action of brachialis?

Answer 13

flexion of elbow

Question 14

Actions of triceps?

Answer 14

extension (long head) of the humerus and glenohumeral

extension (all three heads) of elbow

Question 15

Action of aconeus m?

Answer 15

assist with extension of elbow

Question 16

Innervation of biceps brachii, coracobrachialis, and brachialis?

Answer 16

musculocutaneous n
C5-C7

Question 17

Innervation of triceps and aconeus m?

Answer 17

radial n
C5-T1