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Spinal segments innervation to muscles

Contents

Listing of which spinal levels that innervates the various muscles

CERVICAL LEVEL

C1

  • Infrahyoid muscles
  • Rectus Capitis Anterior
  • Rectus Capitis Lateralis
  • Longus Capitis
  • Sternocleidomastoideus

 

C2

  • Infrahyoid Muscles
  • Rectus Capitis Anterior
  • Rectus Capitis Lateralis
  • Longus Capitis
  • Longus Colli
  • Sternocleidomastoideus
  • Trapezius

 

C3

  • Infrahyoid muscles
  • Longus Capitis
  • Longus Colli
  • Levator Scapulae
  • Scaleni
  • Sternocleidomastoideus
  • Trapezius
  • Diaphragma

 

C4

  • Longus Capitis
  • Longus Colli
  • Levator Scapulae
  • Scaleni
  • Trapezius
  • Diaphragma
  • Rhomboideus Major
  • Rhomboideus Minor
  • Supraspinatus
  • Infraspinatus (possible)

 

C5

  • Longus Colli
  • Levator Scapulae
  • Scaleni
  • Diaphragma (minor)
  • Serratus Anterior
  • Rhomboideus Major
  • Rhomboideus Minor
  • Subclavius
  • Supraspinatus
  • Infraspinatus
  • Subscapularis
  • Teres Major
  • Pectoralis Major, clavicular aspect
  • Teres Minor
  • Deltoideus
  • Biceps
  • Brachialis
  • Brachioradialis
  • Extensor Carpi Radialis Longus (minor)
  • Extensor Carpi Radialis Brevis (minor)
  • Supinator (minor)

 

C6

  • Longus Colli
  • Scaleni
  • Serratus Anterior
  • Subclavius
  • Supraspinatus (minor)
  • Infraspinatus
  • Subscapularis
  • Latissimus Dorsi
  • Teres Major
  • Pectoralis Major, upper
  • Pectoralis Major, lower
  • Pectoralis Minor (minor)
  • Teres Minor
  • Deltoideus
  • Coracobrachialis
  • Biceps Brachii
  • Brachialis
  • Triceps (minor)
  • Brachialis
  • Brachioradialis
  • Extensor Carpi Radialis Longus
  • Extensor Carpi Radialis Brevis
  • Supinator
  • Extensor Digitorum
  • Extensor Digiti Minimi
  • Extensor Carpi Ulnaris
  • Abductor Pollicis Longus
  • Extensor Pollicis Longus
  • Extensor Pollicis Brevis
  • Extensor Pollicis Longus
  • Extensor Indicis
  • Pronator Teres
  • Flexor Carpi Radialis
  • Palmaris Longus
  • Flexor Pollicis Longus (possible)
  • Abductor Pollicis Brevis
  • Opponens Pollicis
  • Flexor Pollicis Brevis
  • Lumbricales (possible)

C7

  • Longus Colli (possible)
  • Scaleni
  • Serratus Anterior
  • Subscapularis (minor)
  • Latissimus Dorsi
  • Teres Major (minor)
  • Pectoralis Major, upper
  • Pectoralis Major, lower
  • Pectoralis Minor
  • Coracobrachialis
  • Triceps
  • Anconeus
  • Extensor Carpi Radialis Longus
  • Extensor Carpi Radialis Brevis
  • Supinator (possible)
  • Extensor Digitorum
  • Extensor Digiti Minimi
  • Extensor Carpi Ulnaris
  • Abductor Pollicis Longus
  • Extensor Pollicis Brevis
  • Extensor Pollicis Longus
  • Extensor Indicis
  • Pronator Teres
  • Flexor Carpi Radialis
  • Palmaris Longus
  • Flexor Digitorum Superficialis
  • Flexor Digitorum Profundus 1-2 (minor)
  • Flexor Pollicis Longus (minor)
  • Pronator Quadratus (minor)
  • Abductor Pollicis Brevis (minor)
  • Opponens Pollicis (minor)
  • Flexor Pollicis Brevis (minor)
  • Lumbricales 1-2 (minor)
  • Flexor Carpi Ulnaris (minor)
  • Flexor Digitorum Profundus 3-4 (minor)
  • Palmaris Brevis (possible)
  • Abductor Digiti Minimi (possible)
  • Opponens Digiti Minimi (possible)
  • Flexor Digiti Minimi (possible)
  • Lumbricales 3-4 (possible)

C8

  • Scaleni
  • Serratus Anterior
  • Latissimus Dorsi
  • Pectoralis Major (lower part)
  • Pectoralis Minor
  • Triceps
  • Anconeus
  • Extensor Carpi Radialis Longus
  • Extensor Carpi Radialis Brevis
  • Extensor Digitorum
  • Extensor Digiti Minimi
  • Extensor Carpi Ulnaris
  • Abductor Pollicis Longus
  • Extensor Pollicis Brevis
  • Extensor Pollicis Longus
  • Extensor Indicis
  • Flexor Carpi Radialis
  • Palmaris Longus
  • Flexor Digitorum Superficialis
  • Flexor Pollicis Longus
  • Extensor Pollicis Brevis
  • Extensor Pollicis Longus
  • Extensor Indicis
  • Flexor Carpi Radialis
  • Palmaris Longus
  • Flexor Digitorum Superficialis
  • Flexor Digitorum Profundus
  • Flexor Pollicis Longus
  • Pronator Quadratus
  • Abductor Pollicis Brevis
  • Opponens Brevis
  • Flexor Pollicis Brevis
  • Lumbricales
  • Flexor Carpi Ulnaris
  • Palmaris Brevis
  • Abductor Digiti Minimi
  • Opponens Digiti Minimi
  • Flexor Digiti Minimi
  • Palmar Interossei
  • Dorsal Interossei
  • Adductor Pollicis
  • Flexor Pollicis Brevis

Th1

  • Pectoralis Major (lower part)
  • Pectoralis Minor
  • Triceps
  • Palmaris Longus
  • Flexor Digitorum Superficialis
  • Flexor Digitorum Profundus
  • Flexor Pollicis Longus
  • Extensor Pollicis Brevis
  • Extensor Pollicis Longus
  • Extensor Indicis
  • Flexor Carpi Radialis
  • Palmaris Longus
  • Flexor Digitorum Superficialis
  • Flexor Pollicis Longus
  • Pronator Quadratus
  • Abductor Pollicis Brevis
  • Opponens Brevis
  • Flexor Pollicis Brevis
  • Lumbricales
  • Flexor Carpi Ulnaris
  • Palmaris Brevis
  • Abductor Digiti Minimi
  • Opponens Digiti Minimi
  • Flexor Digiti Minimi
  • Palmar Interossei
  • Dorsal Interossei
  • Adductor Pollicis
  • Flexor Pollicis Brevis

THORACIC LEVEL

Th1-Th4

  • Serratus Posterior Superior
  • Transversus Thoracis
  • Internal Intercostalis
  • External Intercostalis
  • Subcostales
  • Levator Costarum

Th5-6

  • Transversus Thoracis
  • Internal Intercostalis
  • External Intercostalis
  • Subcostales
  • Levator Costarum
  • Rectus Abdominis

Th7-8

  • Transversus Thoracis
  • Internal Intercostalis
  • External Intercostalis
  • Subcostales
  • Levator Costarum
  • Rectus Abdominis
  • Obliquus Externus
  • Obliquus Internus
  • Transversus Abdominis

Th9-11

  • Internal Intercostalis
  • External Intercostalis
  • Subcostales
  • Levator Costarum
  • Rectus Abdominis
  • Obliquus Externus
  • Obliquus Internus
  • Transversus Abdominis
  • Serratus Posterior Inferior

Th12

  • Rectus Abdominis
  • Obliquus Externus
  • Obliquus Internus
  • Transversus Abdominis
  • Serratus Posterior Inferior
  • Quadratus Lumborum

LUMBAR LEVEL

L1

  • Erector Spinae
  • Obliquus Internus
  • Transversus Abdominis
  • Quadratus Lumborum
  • Iliopsoas

L2

  • Erector Spinae
  • Quadratus Lumborum
  • Iliopsoas
  • Pectineus
  • Sartorius
  • Quadriceps
  • Adductor Brevis
  • Adductor Longus
  • Gracilis
  • Adductor Magnus

L3

  • Erector Spinae
  • Quadratus Lumborum
  • Psoas Major
  • Iliacus
  • Pectineus
  • Sartorius
  • Quadriceps
  • Adductor Brevis
  • Adductor Longus
  • Gracilis
  • Adductor Magnus
  • Obturator Externus

L4

  • Erector Spinae
  • Psoas Major
  • Iliacus
  • Pectineus
  • Quadriceps
  • Adductor Brevis
  • Adductor Longus
  • Gracilis
  • Adductor Magnus
  • Obturator Externus
  • Gluteus Medius
  • Gluteus Minimus
  • Tensor Fascia Latae
  • Gemellus Inferior
  • Quadratus Femoris
  • Semitendinosus
  • Semimembranosus
  • Tibialis Anterior
  • Extensor Hallucis Longus
  • Extensor Digitorum Longus
  • Peroneus Tertius
  • Extensor Digitorum Brevis
  • Peroneus Longus
  • Peroneus Brevis
  • Plantaris
  • Popliteus
  • Flexor Digitorum Brevis
  • Abdcutor Hallucis
  • Flexor Hallucis Brevis
  • Lumbricals 1

L5

  • Adductor Magnus
  • Gluteus Medius
  • Gluteus Minimus
  • Tensor Fascia Latae
  • Gluteus Maximus
  • Gemellus Superior
  • Obturator Internus
  • Gemellus Inferior
  • Quadratus Femoris
  • Biceps Femoris
  • Semitendinosus
  • Semimembranosus
  • Tibialis Anterior
  • Extensor Hallucis Longus
  • Extensor Digitorum Longus
  • Peroneus Tertius
  • Extensor Digitorum Brevis
  • Peroneus Longus
  • Peroneus Brevis
  • Plantaris
  • Popliteus
  • Soleus
  • Tibialis Posterior
  • Flexor Digitorum Longus
  • Flexor Hallucis Longus
  • Flexor Digitorum Brevis
  • Abdcutor Hallucis
  • Flexor Hallucis Brevis
  • Lumbricals 1

SACRAL LEVEL

S1

  • Adductor Magnus
  • Gluteus Medius
  • Gluteus Minimus
  • Tensor Fascia Latae
  • Gluteus Maximus
  • Piriformis
  • Gemellus Superior
  • Obturator Internus
  • Gemellus Inferior
  • Quadratus Femoris
  • Biceps Femoris
  • Semitendinosus
  • Semimembranosus
  • Tibialis Anterior
  • Extensor Hallucis Longus
  • Extensor Digitorum Longus
  • Peroneus Tertius
  • Extensor Digitorum Brevis
  • Peroneus Longus
  • Peroneus Brevis
  • Plantaris
  • Popliteus
  • Soleus
  • Tibialis Posterior
  • Flexor Digitorum Longus
  • Flexor Hallucis Longus
  • Flexor Digitorum Brevis
  • Abdcutor Hallucis
  • Flexor Hallucis Brevis
  • Lumbricals
  • Gastrocnemius
  • Abductor Digiti Minimi
  • Quadratus Plantae
  • Flexor Digiti Minimi
  • Opponens Digiti Minimi
  • Adductor Hallucis
  • Plantar Interossei
  • Dorsal Interossei

S2

  • Gluteus Maximus
  • Piriformis
  • Gemellus Superior
  • Obturator Internus
  • Gemellus Inferior
  • Quadratus Femoris
  • Biceps Femoris
  • Semitendinosus
  • Semimembranosus
  • Gastrocnemius
  • Soleus
  • Flexor Hallucis Longus
  • Abductor Digiti Minimi
  • Quadratus Plantae
  • Flexor Digiti Minimi
  • Opponens Digiti Minimi
  • Adductor Hallucis
  • Plantar Interossei
  • Dorsal Interossei

S3

  • Biceps Femoris