Posterior compartment of the forearm

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Posterior compartment of the forearm

Cross-section through the middle of the forearm. (Anterior compartment is at top; posterior compartment is at bottom.)
Artery	radial artery, radial recurrent artery , profunda brachii, posterior interosseous artery
Nerve	radial nerve^[1], posterior interosseous nerve

The posterior compartment of the forearm contains the following muscles:

Level	Muscle	E/I
(see below)	brachioradialis	I
superficial	extensor carpi radialis longus	E
superficial	extensor carpi radialis brevis	E
superficial	extensor carpi ulnaris	E
intermediate	extensor digitorum (communis)	E
intermediate	extensor digiti minimi (proprius)	E
deep	abductor pollicis longus	E
deep	extensor pollicis brevis	E
deep	extensor pollicis longus	E
deep	extensor indicis (proprius)	E
deep	supinator	I
deep	anconeus	I

"E/I" refers to "extrinsic" or "intrinsic".

The Brachioradialis, flexor of the forearm, is unusual in that it is located in the posterior compartment, but it is actually in the anterior portion of the forearm.

Compartment syndrome

Transverse section across distal ends of radius and ulna.

Transverse section across the wrist and digits.

^ Norman/Georgetown lesson5musofpostforearm

This anatomy article is a stub. You can help Wikipedia by expanding it.

v • d • e

Muscles of upper limbs

VERTEBRAL COLUMN: trapezius - latissimus dorsi - rhomboid major - rhomboid minor - levator scapulae

ANTERIOR AND LATERAL THORACIC WALLS: pectoralis major - pectoralis minor - subclavius - serratus anterior

SHOULDER: deltoid - rotator cuff (supraspinatus, infraspinatus, teres minor, subscapularis) - teres major

ARM: anterior compartment: coracobrachialis - biceps brachii - brachialis
posterior compartment: triceps brachii - anconeus

FOREARM: anterior compartment super. - pronator teres - palmaris longus - flexor carpi radialis - flexor carpi ulnaris - flexor digitorum superficialis
deep - pronator quadratus - flexor digitorum profundus - flexor pollicis longus
posterior compartment super. - mobile wad (brachioradialis, extensor carpi radialis longus and brevis) - extensor digitorum, - extensor digiti minimi - extensor carpi ulnaris
deep - supinator - anatomical snuff box (abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus) - extensor indicis

HAND: Lateral volar - abductor pollicis brevis - thenar (opponens pollicis, flexor pollicis brevis, adductor pollicis)
Medial volar - palmaris brevis - hypothenar (abductor minimi digiti, flexor digiti minimi brevis, opponens digiti minimi)
Intermediate - lumbrical - dorsal interossei - palmar interossei

v • d • e

General anatomy of upper limbs

Arm:

Clavipectoral triangle - Quadrangular space - Triangular space - Triangular interval - Axilla - Axillary sheath - Anterior axillary fold - Brachial fascia - Pectoral fascia - Axillary fascia - Fascial compartments of arm (Anterior, Posterior) - Lateral intermuscular septum - Medial intermuscular septum - Bicipital aponeurosis

Forearm: Cubital fossa - Interosseous membrane of the forearm - Posterior compartment of the forearm - Anterior compartment of the forearm - Antebrachial fascia - Carpal tunnel - Common extensor tendon - Common flexor tendon

Hand: Palmar aponeurosis - Finger - Extensor retinaculum of the hand - Flexor retinaculum of the hand - Anatomical snuff box - Extensor expansion

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Category: Anatomy stubs

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