Muscles Of The Forearm, Wrist, And Hand

Front 1

pronator teres

Back 1

A: pronates forearm

O: medial epicondyle of humerus and coronoid process of ulna

I: middle of lateral side of radius

Hint 1

median nerve

Front 2

Flexor carpi radialis

Back 2

A: flexes and abducts hand

O: medial epicondyle of humerus

I: base of second metacarpal

Hint 2

median nerve

Front 3

Palmaris longus

Back 3

A: flexes hand and forearm

O: medial epicondyle of humerus

I: flexor retinaculum and palmar aponeurosis

Hint 3

median nerve

Front 4

Flexor carpi ulnaris

Back 4

A: flexes and adducts hand

O: medial epicondyle of humerus and olecranon and posterior border of ulna

I: pisiform; hook of hamate; base of fifth metacarpal

Hint 4

ulnar nerve

Front 5

flexor digitorum superficialis

Back 5

A: flex proximal interphalangeal joint and flexes hand

O: medial epidcondyle of humerus; coronoid process of ulna, and oblique line of radius

I: middle phalanges of fingers

Hint 5

median nerve

Front 6

Flexor digitorum profundus

Back 6

A: flexes distal interphalangela joints and hand

O: anteromedial surface of ulna and interosseus membrane

I: bases of distal phalanges of fingers

Hint 6

ulnar and anterior interosseous nerves

Front 7

Flexor pollicis longus

Back 7

A: flexes thumb

O: anterior surface of radius and interosseous membrane

I: base of distal phalanx of thumb

Hint 7

anterior interosseous nerve

Front 8

Pronator quadratus

Back 8

A: pronates forearm

O: anterior surface of distal ulna

I: anterior surface of distal radius

Hint 8

anterior interosseous nerve

Front 9

Abductor pollicis brevis

Back 9

A: abduct thumb

O: Flexor retinaculum and trapezium

I: lateral side of base of proximal phalanx of thumb

Hint 9

recurrent branch of median nerve

Front 10

Flexor pollicis brevis

Back 10

A: flexes thumb

O: flexor retinaculum and trapezium

I: base of proximal phalanx of thumb

Hint 10

Recurrent branch of median nerve

Front 11

Opponens pollicis

Back 11

A: opposes thumb to other fingers

O: flexor retinaculum and trapezium

I: lateral side of metacarpal 1

Hint 11

recurrent branch of median nerve

Front 12

Adductor pollicis

Back 12

A: adduct thumb

O: capitate; base of 2nd and 3rd metacarpals; palmar surface of third metacarpal

I: base of proximal phalanx of thumb

Hint 12

Deep branch of ulnar nerve

Front 13

Palmaris brevis

Back 13

A: tightens skin on medial side of palm

O: palmar aponeurosis

I: skin of medial side of palm

Hint 13

superficial branch of ulnar nerve

Front 14

Abductor digiti minimi

Back 14

A: abducts little finger

O: pisiform

I: base of proximal phalanx of little finger

Hint 14

Deep branch of ulnar nerve

Front 15

Flexor digiti minimi brevis

Back 15

A: flexes little finger

O: flexor retinaculum and hook of hamate

I: base of proximal phalanx of little finger

Hint 15

deep branch of ulnar nerve

Front 16

opponens digiti minimi

Back 16

A: opposes little finger

O: flexor retinaculum and hook of hamate

I; fifth metacarpal

Hint 16

deep branch of ulnar nerve

Front 17

lumbricals (4)

Back 17

A: flex metacarpophalangeal joints; extend interphalangeal joints

O: tendons of flexor digitorum profundus

I: lateral side of extensor expansion

Hint 17

Median nerve supplies 2 lateral ones and deep branch of ulnar nerve supplies the 2 medial ones

Front 18

Dorsal interossei (4)

Back 18

A: extends interphalangeal joints, flex metacarpophalangeal joint, abduct fingers

O: adjacent sides of metacarpal bones

I: bases of proximal phalanges; extensor expansion

Hint 18

Deep branch of ulnar nerve

Front 19

Palmar interossei (3)

Back 19

A: adduct fingers, flex metacarpophalangeal joints, extend interphalangeal joints

O: medial side of second metacarpal; lateral sides of fourth and fifth metacarpals

I: bases of proximal phalanges in same sides as their origins; extensor expansion

Hint 19

Deep branch of ulnar nerve

Front 20

Anconeus

Back 20

A: extends forearm

O: lateral epicondyle of humerus

I: olecranon and posterior surface of ulna

Hint 20

radial nerve

Front 21

Brachioradialis

Back 21

A: flexes forearm

O: lateral supracondylar ridge

I: distal lateral radius

Hint 21

radial nerve

Front 22

Extensor carpi radialis longus

Back 22

A: extends and abducts hand

O: lateral supracondylar ridge

I: base of metacarpal 2

Hint 22

radial nerve

Front 23

Extensor carpi radialis brevis

Back 23

A: extends/abducts hand

O: lateral epicondyle

I: base of metcarpal 3

Hint 23

deep branch of radial nerve

Front 24

Extensor digitorum

Back 24

A: extends fingers and hand

O:lateral epicondyle of humerus

I: extensor expansions of four fingers

Hint 24

posterior interosseous nerve

Front 25

Extensor digiti minimi

Back 25

A: extends little finger

O: lateral epicondyle of humerus

I: extensor expansion of small finger

Hint 25

posterior interosseous nerve

Front 26

Extensor carpi ulnaris

Back 26

A: extends/adducts hand

O: lateral epicondyle/posterior surface of ulna

I: base of fifth metacarpal

Hint 26

posterior interosseous nerve

Front 27

Supinator

Back 27

A: supinates forearm

O: lateral epicondyle, radial collateral and annular ligaments, proximal ulna

I: upper third of radius

Hint 27

Deep branch of radial nerve

Front 28

Abductor pollicis longus

Back 28

A: adducts the thumb

O: middle third of posterior radius and ulna; interosseous membrane

I: base of first metacarpal

Hint 28

Posterior interosseous nerve

Front 29

Extensor pollicis longus

Back 29

A: extends distal phalanx of the thumb

O: posterior surface of interosseous membrane, middle third of ulna

I: base of distal phalanx of thumb

Hint 29

posterior interosseous nerve

Front 30

Extensor pollicis brevis

Back 30

A: extends proximal phalanx of thumb

O: interosseous membrane and middle third of radius

I: base of proximal phalanx of thumb

Hint 30

Posterior interosseous nerve

Front 31

Extensor indicis

Back 31

A: Extends index finger

O: posterior surface of ulna and interosseous membrane

Hint 31

Posterior interosseous nerve