Hypothenar muscles

This is an eminence of soft tissue located on the ulnar side of the palm of the hand. There are three muscles of the hypothenar eminence:

• abductor digiti minimi manus

• flexor digiti minimi manus

• opponens digiti minimi.

Action — all three muscles move the little finger.

The muscles of the hand 129

Superficial muscles

Deep muscles

Triceps

Flexor carpi ulnaris

Flexor digitorum

Hypothenar muscles

Deltoid muscle

Brachialis

Brachioradialis

Deltoid muscle

Triceps

Flexor carpi ulnaris

Flexor digitorum

Hypothenar muscles

Brachialis

Brachioradialis

(Brachialis)

Flexor digitorum

Flexor carpi ulnaris

Abductor digiti minimi

Opponens digiti minimi

Flexor digiti minimi brevis

(Brachialis)

Flexor digitorum

Flexor carpi ulnaris

Abductor digiti minimi

Opponens digiti minimi

Flexor digiti minimi brevis

Deltoid

Coracobrachialis Biceps

Brachioradialis

Extensor carpi radialis

Supinator

Pronator teres

Flexor pollicis longus

Flexor carpi radialis

Abductor pollicis brevis

Opponens pollicis

Flexor pollicis brevis

Fig 4.8 The muscles of the upper limb (anterior/flexor aspect)

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