Muscle Action

Question 1

Flexor carpi radialis

Answer 1

Flexes and radially deviates hand at wrist

Question 2

Palmaris longus

Answer 2

Flexes hand at wrist

Question 3

Flexor carpi ulnaris

Answer 3

Flexes and ulnar deviates hand at wrist

Question 4

Extensor carpi radialis longus and brevis

Answer 4

Extends and radially deviates hand at wrist

Question 5

Extensor carpi ulnaris

Answer 5

Extends and ulnar deviates hand at wrist

Question 6

Flexor digitorum superficialis

Answer 6

Flexes fingers 2 to 5 at metacarpophalangeal and proximal interphalangeal joints and flexes hand at wrist

Question 7

Flexor digitorum profundus

Answer 7

Flexes fingers 2 to 5 at metacarpophalangeal, distal interphalangeal and proximal interphalangeal joints, and flex the hand at the wrist

Question 8

Flexor pollicis longus

Answer 8

Flex thumb and flex hand at wrist

Question 9

Extensor digitorum

Answer 9

Extends fingers 2 to 5 and extends hand at wrist

Question 10

Abductor pollicis longus

Answer 10

Abducts and extends the thumb.

Question 11

Extensor pollicis brevis

Answer 11

Extend and abduct thumb

Question 12

Extensor pollicis longus

Answer 12

Extends thumb

Question 13

Extensor indices

Answer 13

Extends index finger and extends hand at wrist

Question 14

Flexor pollicis brevis

Answer 14

Flex thumb

Question 15

Lumbricals

Answer 15

Extends and flexes fingers 2 to 5

Question 16

Palmar interossei

Answer 16

Adduct fingers 2, 4 and 5

Question 17

Dorsal interossei

Answer 17

Abduct fingers 2-4