Common Innervations, actions and origins

Suboccipital n.

Obliquus capitis superior and inferior
Rectus capitis posterior major and minor

Suprascapular n.

Supraspinatus m.
Infraspinatus m.

Axillary n.

Teres minor m.
Deltoid m.

Upper subscapular n.

Subscapularis m.

Lower subscapular n.

Subscapularis m.
Teres major m.

Long thoracic n.

Serratus anterior m.

CN XI

Trapezius m.

Thoracodorsal n.

Latissimus dorsi m.

Dorsal scapular n.

Rhomboid major and minor
Levator scapulae

Medial pectoral n.

Pectoralis major and minor

N. To Subclavius

Subclavius m.

Musculocutaneous n.

Coracobrachialis
biceps brachii
Brachialis m.

Radial n.

Brachioradialis m.,
longus of extensor carpi radialis,
anconeus,
triceps brachii

Median n.

Pronator teres m.
Flexor carpi radialis m.
Palmaris longus m.
Flexor digitorum superficialis m.
Lumbrical 1 and 2

Ulnar n.

Flexor carpi ulnaris m.
Flexor digitiorum profundus 4 and 5

Anterior interosseous n.

Flexor digitorum profundus m. 2+3
Flexor pollucis longus m.
Pronator quadratus

Deep radial n.

Extensor carpi radialis m. (Brevis)
Extensor carpi ulnaris m.
Extensor digitorum m.
Supinator

Posterior interosseous n.

Extensor digiti minimi
Extensor indicis m.
Abductor pollucis longus m.
Extensor pollucis m.

Recurrent median n.

Abductor pollucis brevis
Flexor pollucis brevis
Opponens pollucis

Deep ulnar

Adductor pollucis
Abductor digiti minimi
Flexor digiti minimi
Opponens digiti minimi
Lumbrical 3 and 4
Palmer and Dorsal interossei

Head extension

Obliquus capitis superior
Rectus capitis posterior major and minor

Unilateral lateral flexion

Obliquus capitis superior

Rotation C1 and C2

Obliquus capitis inferior
Rectus capitis posterior major and minor

Shoulder abduction

Supraspinatus
Deltoid

Shoulder external rotation

Infraspinatus
Teres minor

Shoulder internal rotation

Suprascapularis
Teres major
Pectoralis major

Shoulder adduction

Teres major
Pectoralis major

Shoulder extension

Teres major
Deltoid

Shoulder flexion

Deltoid
Pectoralis major
Coracobrachialis
Biceps brachii

scapular protraction

Serratus anterior
Pectoralis minor

Depress scapula

Subclavius

Stabilize the scapula

Serratus anterior
Pectoralis minor
Subclavius

Supination

Biceps brachii
Supinator

Elbow flexion

Biceps brachii
Brachialis
Brachioradialis

pronation

Brachialis
Pronator teres
Pronator quadratus

Elbow extension

Triceps brachii
Anonceus

Flex the hand

Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris

Hand abduction

Flexor carpi radialis
Extensor carpi radialis

Hand adduction

Flexor carpi ulnaris
Extensor carpi ulnaris

Which muscles originate from medial epicondyle

Anterior superficial and intermediate muscles of forearm
1. Flexor digitorium superificialis
2. Pronator teres
3. Flexor carpi radialis
4. Palmaris longus
5. Flexor carpi ulnaris

Which muscles originate from lateral epicondyle

All extensors except indicis and pollucis
1. Supinator
2. Aconeous
3. Extensor digitorum
4. Extensor digiti minimi
5. Extensor carpi radialis (brevis)
6. Extensor carpi ulnaris