Upper Limb Muscles

The upper limb functions with the help of numerous small and large muscles, classified into the following section based on their location:

Shoulder Muscles

1. Deltoid
2. Teres major

Rotator Cuff Muscles

1. Supraspinatus
2. Infraspinatus
3. Teres minor
4. Subscapularis

Arm Muscles

Anterior compartment

1. Coracobrachialis
2. Biceps brachii
3. Brachialis

Posterior Compartment

1. Triceps brachii
2. Anconeus

Forearm Muscles

Anterior compartment

Superficial Anterior Forearm Muscles

1. Pronator teres
2. Flexor carpi radialis
3. Palmaris longus
4. Flexor carpi ulnaris
5. Flexor digitorum superficialis

Deep Anterior Forearm Muscles

1. Pronator quadratus
2. Flexor digitorum profundus
3. Flexor pollicis longus

Posterior Compartment

Superficial Posterior Forearm Muscles

1. Extensor digitorum
2. Extensor digiti minimi
3. Extensor carpi ulnaris

Mobile Wad

1. Brachioradialis
2. Extensor carpi radialis longus
3. Extensor carpi radialis brevis

Deep Posterior Forearm Muscles

1. Supinator
2. Extensor indicis

Anatomical Snuff Box Muscles

1. Abductor pollicis longus
2. Extensor pollicis brevis
3. Extensor pollicis longus

Hand Muscles

Lateral Volar Muscles

Thenar Muscles

1. Opponens pollicis
2. Flexor pollicis brevis
3. Abductor pollicis brevis

Other Muscles in this Area

1. Adductor pollicis

Medial Volar Muscles

Hypothenar muscles

1. Abductor digiti minimi
2. Flexor digiti minimi brevis
3. Opponens digiti minimi

Other Muscles in this Area

1. Palmaris brevis

Intermediate Volar Muscles

1. Lumbricals
2. Dorsal interossei
3. Palmar interossei