Deltopectoral groove

The deltopectoral groove is an indentation in the muscular structure between the deltoid muscle and pectoralis major.^[1]

It is the location through which the cephalic vein passes and where the coracoid process is most easily palpable.

Additional images

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)

Anterior	superficial: pronator teres · palmaris longus · flexor carpi radialis · flexor carpi ulnaris · flexor digitorum superficialis deep: pronator quadratus · flexor digitorum profundus · flexor pollicis longus

Posterior	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)

Fascia	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)