Movements of the Upper Limb

Question 1

Muscles responsible for protraction of shoulder girdle?

Answer 1

Serratus anterior

Pectoralis minor

Question 2

What is protraction?

Answer 2

forward rotation

Question 3

Muscles responsible for retraction of shoulder girdle?

Answer 3

Rhomboideus major and minor

Question 4

What is retraction?

Answer 4

Backwards rotation

Question 5

Muscles responsible of elevation of shoulder girdle?

Answer 5

Trapezius

Pectoralis minor

Question 6

Muscles responsible for rotation of shoulder girdle

Answer 6

Trapezius

Question 7

Muscles responsible for flexion of shoulder joint?

Answer 7

Pectoralis major
Deltoid
Coracobrachialis
Biceps

Question 8

Muscles responsible for extension of shoulder joint

Answer 8

Latissimus dorsi
Triceps
Deltoid

Question 9

Muscles responsible for abduction of shoulder joint

Answer 9

<15 degress = supraspinatus
>90 degrees = serratus anterior and trapezius
deltoids (middle)

Question 10

Muscles responsible for adduction of shoulder joint?

Answer 10

Pectoralis major
Latissimus dorsi
Teres major
triceps

Question 11

Muscles responsible for medial rotation of shoulder joint

Answer 11

Pectoralis major
Subscapularis
teres major
Latissimus dorsi
Deltoid

Question 12

Muscles responsible for lateral rotation

Answer 12

Infraspinatus
Teres minor
Deltoid

Question 13

Muscles responsible for flexion of elbow joint

Answer 13

biceps
brachioradialis
brachialis
coracobrachialis

Question 14

Muscles responsible for extension of elbow joint

Answer 14

triceps

Question 15

Muscles responsible for pronation of radio-ulnar joints

Answer 15

pronator teres and quadratus

biceps

Question 16

Muscles responsible for supination of radio-ulnar joint

Answer 16

supinator

Question 17

Muscles responsible for palmar flexion

Answer 17

flexor carpi radialis
flexor carpi ulnaris
palmaris longus
long flexors of digits

Question 18

Muscles responsible for extension of wrist

Answer 18

extensor carpi radialis
extensor carpi ulnaris
long extensors of digits

Question 19

Muscles responsible for abduction of wrist

Answer 19

flexor carpi radialis
extensor carpi radialis
long flexor and extensor of thumb

Question 20

Muscles responsible for adduction of wrist

Answer 20

flexor carpi ulnaris

extensor carpi ulnaris

Question 21

Muscles responsible for flexion of digits

Answer 21

flexor digitorum superficialis
flexor digitorum profundus
lumbrical muscles

Question 22

Muscles responsible for extension of digits

Answer 22

extensor digitorum, indicis and minimi

Question 23

Muscles responsible for abduction of digits

Answer 23

dorsal interossei

Question 24

Muscles responsible for adduction of digits

Answer 24

Palmar interossei

Question 25

Actions of deltoid

Answer 25

Anterior fibres – flexion and medial rotation.
Posterior fibres – extension and lateral rotation.
Middle fibres – the major abductor of the arm (takes over from the supraspinatus, which abducts the first 15 degrees).

Question 26

Action of teres major

Answer 26

Adducts at the shoulder and medially rotates the arm.