hand - all

Question 1

wrist flexors

Answer 1

• flexor carpi ulnaris
• flexor carpi radialis
• palmaris longus
• flexor digitorum superficialis
• flexor digitorum profundus
• flexor pollicis longus

Question 2

wrist extensors

Answer 2

• extensor carpi ulnaris
• extensor carpi radialis longus
• extensor carpi radialis brevis
• extensor digitorum
• extensor indicis
• extensor digiti minimi
• extensor pollicis longus
• extensor pollicis brevis

Question 3

ulna deviation (adductors)

Answer 3

• flexor carpi ulnaris

- extensor carpi ulnaris

Question 4

radial deviation (abductors)

Answer 4

• flexor carpi radialis
• extensor carpi radialis longus
• extensor carpi radialis longus

Question 5

finger flexors

Answer 5

• flexor digitorum superficialis

- flexor digitorum profundus

Question 6

thumb flexors

Answer 6

• flexor pollicis longus

- flexor pollicis brevis

Question 7

finger extensors

Answer 7

• extensor digitorum
• extensor indicis
• extensor digiti minimi

Question 8

intrinsic muscles

Answer 8

• interossei
• lumbricals
• oppenens digiti minimi
• adductor pollicis
• abductor digiti minimi
• abductor pollicis brevis

Question 9

flexor carpi radialis

1) origin
2) insertion
3) action

Answer 9

1) medial epicondyle of humerous
2) base of 2nd & 3rd metacarpals
3) flexor and abducts (radially deviates)

Question 10

flexor carpi ulnaris

1) origin
2) insertion
3) action

Answer 10

1) medial epicondyle of humerous, olecranon and posterior surface of ulna
2) pisiform, hamate and base of fifflecth metacarpal
3) flexes and adducts

Question 11

flexor digitorum superficialis

1) origin
2) insertion
3) action

Answer 11

1) medial epicondyle of humerous, coronoid process of ulna and shaft of radius
2) by 4 tendons into middle phalanges of fingers 2-5
3) flexes hand and middle phalanges of fingers 2-5

Question 12

flexor digitorum profundus

1) origin
2) insertion
3) action

Answer 12

1) anteriomedial surface of ulna & interosseous membrane
2) by 4 tendons into distal phalanges of fingers 2-5
3) flexes distal interphalangeal joints

Question 13

flexor pollicis longus

1) origin
2) insertion
3) action

Answer 13

1) anterior surface of radius & interosseous membrane
2) distal phalanx of thumb
3) flexes distal phalanx of thumb

Question 14

extensor carpi radialis brevis

1) origin
2) insertion
3) action

Answer 14

1) lateral supracondylar ridge of humerous
2) base of second metacarpal
3) extends and abducts hand

Question 15

extensor carpi radialis brevis

1) origin
2) insertion
3) action

Answer 15

1) lateral epicondyle of humerous
2) base of third metacarpal
3) extends and abducts hand

Question 16

extensor digitorum

1) origin
2) insertion
3) action

Answer 16

1) lateral epicondyle of humerous
2) by 4 tendons to distal phalanges of fingers 2-5
3) extends and abducts hand

Question 17

extensor carpi ulnaris

1) origin
2) insertion
3) action

Answer 17

1) lateral epicondyle of humerous and posterior border of ulna
2) base of 5th metacarpal
3) extends & adducts hand

Question 18

adductor pollicis longus

1) origin
2) insertion
3) action

Answer 18

1) posterior surface of radius and ulna & interosseous membrane
2) base of 1st metacarpal and trapezium
3) abducts & extends thumb

Question 19

extensor pollicis brevis

1) origin
2) insertion
3) action

Answer 19

1) dosral shaft of radius and ulna & interosseous membrane
2) base of proximal and distal phalanx of thumb
3) extends thumb

Question 20

extensor indicis

1) origin
2) insertion
3) action

Answer 20

1) posterior surface of distal ulna & interosseous membrane
2) joins tendon of extensor digitorum
3) extends index finger

Question 21

opponens pollicis

1) location
2) action

Answer 21

1) metacarpal 1

2) opposition

Question 22

abductor pollicis brevis

1) location
2) action

Answer 22

1) in thumb

2) abducts thumb

Question 23

flexor pollics brevis

1) location
2) action

Answer 23

1) in thumb

2) flexes thumb

Question 24

adductor pollicis

1) location
2) action

Answer 24

1) in thumb

2) adducts & opposes thumb

Question 25

oppenes digiti minimi

1) location
2) action

Answer 25

1) metacarpal 5

2) assists opposition

Question 26

abductor digiti minimi

1) location
2) action

Answer 26

1) proximal phalanx of little finger

2) abducts little finger

Question 27

flexor digiti minimi

1) location
2) action

Answer 27

1) proximal phalanx of little finger

2) flexes little finger

Question 28

lumbricals

1) location
2) action

Answer 28

1) in each finger

2) flex metacarpophalangeal joints and extends interphalangeal joint

Question 29

palmar interossei

1) location
2) action

Answer 29

1) in space between metacarpals

2) adducts fingers

Question 30

dorsal interossei

1) location
2) action

Answer 30

1) in space between metacarpals

2) abducts finger

Question 31

extensor digti minimi

Answer 31

tendon attach to little finger to extend it