Elbow MMT Muscles

Question 1

Muscles involved in elbow flexion

Answer 1

biceps brachii, brachialis, brachioradialis

Question 2

How to isolate biceps brachii during flexion MMT

Answer 2

elbow bent, palm supine (facing up)

Question 3

How to isolate brachioradialis in flexion MMT

Answer 3

forearm in mid-position b/t pronation & supination

Question 4

How to isolate brachialis in flexion MMT

Answer 4

forearm pronated (palm facing down)

Question 5

Brachialis OII

Answer 5

Origin: distal half of anterior humerus
Insertion: ulnar tuberosity and coronoid process
Innervation: musculocutaneous nerve

Question 6

Muscles involved in elbow extension

Answer 6

triceps brachii, anconeus

Question 7

triceps brachii OII

Answer 7

Origin: infraglenoid tubercle of scapula, posterior shaft of humerus
insertion: olecranon
innervation: radial nerve

Question 8

muscles involved in forearm supination

Answer 8

supinator, biceps brachii

Question 9

supinator OII

Answer 9

Origin: lateral epicondyle of humerus, annular ligament, proximal ulna
insertion: proximal shaft of radius
innervation: deep branch of radial nerve

Question 10

isolate supinator in forearm supination

Answer 10

put elbow and shoulder into flexion to put biceps into active in sufficiency

Question 11

Muscles involved in forearm pronation

Answer 11

Pronator teres, pronator quadratus

Question 12

Pronator quadratus OII

Answer 12

Origin: anterior distal ulna
insertion: anterior distal radius
innervation: median nerve

Question 13

isolate pronator quadratus during forearm pronation

Answer 13

flex elbow and ask patient to pronate (put pronator teres into active insufficiency)