Muscles involved in UE movements

Question 1

Ulnar deviation

Answer 1

Extensor carpi ulnaris

Flexor carpi ulnaris

Question 2

Extension of 2nd-5th fingers

Answer 2

Extensor digitorum
Lumbricals
Extensor indicis (2nd)
Dorsal & Palmar Interossei (2nd-4th)

Question 3

Shoulder Adduction

Answer 3

Latissimus dorsi
Teres major & minor
Pectoralis major
Infraspinatus
Triceps brachii (long head)
Coracobrachialis

Question 4

Flexion of 2nd-5th fingers

Answer 4

Flexor digitorum superficialis
Flexor digitorum profundus
Flexor digiti minimi brevis (5th)
Lumbricals
Dorsal & Palmar interossei (2nd-4th)

Question 5

Abduction of 2nd-5th fingers

Answer 5

Dorsal interossei (2nd-4th)
Abductor digiti minimi (5th)

Question 6

ER of the Shoulder

Answer 6

Deltoid posterior fibers
Infraspinatus
Teres minor

Question 7

Extension of shoulder

Answer 7

Deltoid posterior fibers
Latissimus dorsi
Teres major
Pectoralis major (lower fibers)
Triceps brachii (long head)

Question 8

Horizontal shoulder abduction

Answer 8

Deltoid posterior fibers

Question 9

Wrist flexion

Answer 9

Flexor carpi radialis & ulnaris
Palmaris longus
Flexor digitorum profundus & superficialis (assists)
Flexor pollicis longus (assists)

Question 10

Pronation of forearm

Answer 10

Pronator teres
Pronator quadratus
Brachioradialis (assists)

Question 11

IR of the shoulder

Answer 11

Deltoid (anterior fibers)
Latissimus dorsi
Teres major
Subscapularis
Pectoralis major (all fibers)

Question 12

Extension of the elbow

Answer 12

Triceps brachii (all heads)
Anconeus

Question 13

Depression of scapula

Answer 13

Trapezius (lower fibers)
Serratus anterior
Pectoralis minor

Question 14

Thumb adduction

Answer 14

Adductor pollicis
Palmar interossei (1st)

Question 15

Thumb abduction

Answer 15

Abductor pollicis lonugs & brevis

Question 16

Opposition of thumb

Answer 16

Opponens pollicis
Flexor pollicis brevis (assists)
Abductor pollicis brevis (assists)

Question 17

Flexion of thumb

Answer 17

Flexor pollicis longus & brevis
Adductor pollicis (assists)
Palmar interossei (1st, assists)

Question 18

Protraction of the scapula

Answer 18

Serratus anterior

Pectoralis major

Question 19

Retraction of the scapula

Answer 19

Trapezius (middle fibers)

Rhomboid major & minor

Question 20

Supination of the forearm

Answer 20

Biceps brachii
Supinator
Brachioradialis (assists)

Question 21

Upward rotation of the scapula

Answer 21

Trapezius (upper & lower fibers)

Serratus anterior

Question 22

Downward rotation of the scapula

Answer 22

Rhomboid major & minor
Levator scapula
Pectoralis minor

Question 23

Elbow flexion

Answer 23

Biceps brachii
Brachialis
Brachioradialis
Flexor carpi radialis & ulnaris (assists)
Palmaris longus (assists)
Pronator teres (assists)
Extensor carpi radialis longus & brevis (assists)

Question 24

Extension of the wrist

Answer 24

Extensor carpi radialis longus & brevis
Extensor carpi ulnaris
Extensor digitorum (assists)
Extensor indicis (assists)

Question 25

Radial deviation

Answer 25

Extensor carpi radialis longus & brevis
Extensor pollicis longus & brevis
Flexor carpi radialis
Abductor pollicis longus

Question 26

Horizontal adduction of the shoulder

Answer 26

Deltoid (anterior fibers)
Pectoralis major (upper fibers)

Question 27

Shoulder flexion

Answer 27

Deltoid (anterior fibers)
Pectoralis major (upper fibers)
Biceps brachii
Coracobrachialis

Question 28

Shoulder abduction

Answer 28

Deltoid (all fibers)

Supraspinatus

Question 29

Scapula elevation

Answer 29

Trapezius (upper fibers)
Rhomboid major & minor
Levator Scapula

Question 30

Thumb extension

Answer 30

Extensor pollicis longus & brevis

Abductor pollicis longus

Question 31

Wrist extension

Answer 31

Extensor carpi radialis longus and brevis

Extensor carpi ulnaris