Anterior view of the muscles of the right arm (biceps brachii muscle and flexor digitorum superficialis muscle).

Long flexor tendons and their fibrous sheaths. Fibrous digital flexor sheath showing the two osseofibrous tunnels.

Structures of the anterior aspect of wrist.

Anterior view of the deep flexors of the digits and related structures.

Posterior aspect of the elbow, with distal portion of triceps brachii muscle removed and anconeus retracted.

Third layer of muscles on the anterior of forearm.

Anterior view of the bones of the forearm and hand showing muscle attachments.

Anterior view of the lumbricals of the hand including the flexor digitorum profundus.

Transverse MRI of forearm: CV, cephalic v; FCR, flex carpi rad; RV, radial vessels; FDS, flex dig super; UV, ulnar vessels; FCU, flex carpi ulnaris; AV, ant interos vessels; INT, interos mem; FDP, flex dig profundus; FPL, flex pol long; U, ulna; R, radius

Transverse section through adductor pollicis; for level of section, see insert (line A).

Sole of foot. First layer of muscles and plantar nerves.

Second layer of muscles of sole of foot.

Flexor digitorum superficialis