Brachial Fascia

The brachial fascia (deep fascia of the arm) is continuous with that covering the deltoideus and the pectoralis major, by means of which it is attached, above, to the clavicle, acromion, and spine of the scapula; it forms a thin, loose, membranous sheath for the muscles of the arm, and sends septa between them; it is composed of fibers disposed in a circular or spiral direction, and connected together by vertical and oblique fibers.

It differs in thickness at different parts, being thin over the biceps brachii, but thicker where it covers the triceps brachii, and over the epicondyles of the humerus: it is strengthened by fibrous aponeuroses, derived from the pectoralis major and latissimus dorsi medially, and from the deltoideus laterally.

On either side it gives off a strong intermuscular septum, which is attached to the corresponding supracondylar ridge and epicondyle of the humerus.

This article incorporates text from a public domain edition of Gray's Anatomy.

List of muscles of upper limbs (TA A04.6, GA 4.432)

deltoid · rotator cuff (supraspinatus, infraspinatus, teres minor, subscapularis) · teres major

fascia: deltoid fascia · supraspinous fascia · infraspinous fascia
anterior coracobrachialis · biceps brachii · brachialis
posterior triceps brachii · anconeus · articularis cubiti
fascia axillary sheath · axillary fascia · brachial fascia · intermuscular septa (lateral, medial)
other spaces (quadrangular space, triangular space, triangular interval)

superficial: pronator teres · palmaris longus · flexor carpi radialis · flexor carpi ulnaris · flexor digitorum superficialis

deep: pronator quadratus · flexor digitorum profundus · flexor pollicis longus

superficial: 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
fascia bicipital aponeurosis · common tendons (extensor, flexor) · antebrachial fascia
other cubital tunnel
lateral volar thenar (opponens pollicis, flexor pollicis brevis, abductor pollicis brevis) · adductor pollicis
medial volar hypothenar (opponens digiti minimi, flexor digiti minimi brevis, abductor digiti minimi) · palmaris brevis
intermediate lumbrical · interossei (dorsal, palmar)

posterior: extensor retinaculum · extensor expansion

anterior: flexor retinaculum · palmar aponeurosis


anat (h/n, u, t/d, a/p, l)/phys/devp/hist

noco (m, s, c)/cong (d)/tumr, sysi/epon, injr

proc, drug (M1A/3)