Ue

Front 1

Back 1

Brachialis

Front 2

Back 2

Biceps Brachii

Front 3

Back 3

Brachioradialis

Front 4

Back 4

Posterior Deltoid

Front 5

Back 5

Deltoid (anterior and middle heads)

Front 6

Back 6

Triceps Brachii (lateral head)

Front 7

Back 7

Triceps Brachii (long head)

Front 8

Back 8

Anconeus

Front 9

Back 9

Pronator Teres

Front 10

Back 10

Pronator quadratus

Front 11

Back 11

Supinator

Front 12

Back 12

Flexor carpi ulnaris

Front 13

Back 13

Flexor carpi radialis

Front 14

Back 14

Palmaris longus

Front 15

Back 15

Extensor carpi radialis longus

Front 16

Back 16

Extensor carpi radialis brevis

Front 17

Back 17

Extensor carpi ulnaris

Front 18

Back 18

Flexor digitorum superficialis

Front 19

Back 19

Extensor digitorum

Front 20

Back 20

Extensor Indicis

Front 21

Back 21

Extensor Digiti Minimi

Front 22

Back 22

Flexor Pollicis Longus

Front 23

Back 23

Abductor Pollicis Longus

Front 24

Back 24

Extensor Pollicis Brevis

Front 25

Back 25

Extensor Pollicis Longus

Front 26

Hypothenar muscles

Back 26

flexor digiti minimi, abductor digiti minimi, abductor digiti minimi (all ulnar nerve)

Front 27

Thenar muscles

Back 27

flexor pollicus brevis, abductor pollicus brevis, opponens pollicus (all medial nerve)

Front 28

Deep palm group

Back 28

interossei - ular nerve, lumbricals - 1st and 2nd median nerve, 3rd and 4th ular nerve, adductor pollicus - ulnar nerve