Muscles Of The Forearm (Posterior,radial)

Front 1

Lateral (radial) part of the posterior compartment

Back 1

M. brachioradialis

M. extensor carpi radialis longus

M. extensor carpi radialis brevis

Front 2

M. brachioradialis,

Back 2

Origo:

Margo lateralis humeri, septum intermusculare laterale

Insertio:

Above proc.styloideus radii

Functio:

Flexio antebrachii, semipronatio

Front 3

M.extensor carpi radialis longus

Back 3

Origo:

epicondylus lateralis humeri

Insertio:

Basis ossis metacarpalis II

Functio:

Extensio manus, abductio manus.

Front 4

M. extensor carpi radialis brevis

Back 4

Origo:

Epicondylus lateralis humeri

Insertio:

Basis ossis metacarpalis III

Functio:

Extensio manus, abductio manus

Front 5

Posteriorcompartment

1st layer

Back 5

M.extensor digitorum

M.extensor digiti minimi

M.extensor carpi ulnaris

Front 6

M. extensor digitorum

Back 6

Origo:

M. extensor carpi ulnaris

Insertio:

Basis phalangis mediae, basis phalangis distalis (II- V fingers)

Functio:

Extensio digitorum, extensio manus.

Front 7

M. extensor digiti minimi

Back 7

Origo:

Epicondylus lateralis humeri

Insertio:

Basis phalangis mediae, basis

Functio:

Extensio digiti minimi.

Front 8

M. extensor carpi ulnaris

Back 8

Origo:

Epicondylus lateralis humeri, olecranon, facies posterior ulnae

Insertio:

Basis ossis metacarpalis V

Functio:

Extensio manus, adductio manus.

Front 9

2ndlayer

Back 9

M.abductor pollicis longus

M.extensor pollicis brevis

M.extensor pollicis longus

M.extensor indicis

M.supinator

Front 10

M. abductor pollicis longus

Back 10

Origo:

Epiphysis proximalis antebrachii, membrana interossea, facies posterior

Insertio:

Basis ossis metacarpalis I

Functio:

Abductio pollicis.

Front 11

M. extensor pollicis brevis

Back 11

Origo:

Epiphysis proximalis antebrachii, membrana interossea, facies posterior

Insertio:

Basis phalangis proximalis pollicis

Functio:

Extensio phalangis proximalis pollicis.

Front 12

M. extensor pollicis longus

Back 12

Origo:

Epiphysis proximalis antebrachii, membrana interossea, facies posterior

Insertio:

Basis phalangis distalis pollicis

Functio:

Extensio pollicis.

Front 13

M. extensor indicis

Back 13

Origo:

Epiphysis proximalis antebrachii, membrana interossea, facies posterior

Insertio:

Basis phalangis mediae, basis phalangis distalis indicis

Functio:

Extensio indicis.

Front 14

M. supinator

Back 14

Origo:

Epicondylus lateralis humeri, ulna, lig. collaterale radiale

Insertio:

Facies lateralis radii

Functio:

Supinatio antebrachii.