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AAAC39 21/5/05 10:48 AM Page 88
39 The hand

Adductor pollicis

Flexor pollicis
longus
Superficial transverse
metacarpal ligament
Palmar aponeurosis
Abductor digiti minimi
Flexor pollicis brevis
Flexor digiti minimi
Abductor pollicis
brevis Flexor retinaculum
Opponens pollicis Pisiform
Flexor carpi ulnaris
Abductor pollicis longus
Flexor carpi radialis Long flexor tendons
Flexor pollicis longus
Palmaris longus
Fig.39.1
The superficial muscles of the hand

1st lumbrical
Palmar (adduct) Dorsal (abduct)
Palmar digital
nerves
Fig.39.2
The palmar (L.) and dorsal (R.) interossei
and their actions in abduction and adduction

Deep branch
Branch to
thenar muscles
Palmar
cutaneous nerve

Median nerve Ulnar nerve
Fig.39.3
The ulnar (yellow) and median (green) nerves in the hand.
Note particularly the recurrent branch of the median nerve which supplies the thenar muscles

88 Upper limb