Cervical spinal nerve 6

Cervical spinal nerve 6: The cervical spinal nerve 6 (C6) is a spinal nerve of the cervical segment.^[1].

It originates from the spinal column from above the cervical vertebra 6 (C6).

The C6 nerve root shares a common branch from C5, and has a role in innervating many muscles of the rotator cuff and distal arm^[2], including:

Subclavius

Supraspinatus

Infraspinatus

Biceps Brachii

Brachialis

Deltoid

Teres Minor

Brachioradialis

Serratus Anterior

Subscapularis

Pectoralis Major

Coracobrachialis

Teres Major

Supinator

Extensor Carpi Radialis Brevis

Extensor Carpi Radialis Longus

Latissimus Dorsi

Damage to the C6 motor neuron, by way of impingement; ischemia; trauma; or degeneration of nerve tissue, can cause denervation of one or more of the associated muscles. Muscle atrophy and other secondary complications can occur.

References

^ American Medical Association Nervous System -- Groups of Nerves

^ E-Hand, Electronic Textbook of Hand Surgery

v · d · eNerves: spinal nerves (TA A14.2, GA 9.916)

Cervical (8)

C1, C2, C3, C4, C5, C6, C7, C8

anterior (Cervical plexus, Brachial plexus) – posterior (Posterior branches of cervical nerves, Suboccipital – C1, Greater occipital – C2, Third occipital – C3)

Thoracic (12)

T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12

anterior (Intercostal, Intercostobrachial – T2, Thoraco-abdominal nerves – T7–T11, Subcostal – T12) – posterior (Posterior branches of thoracic nerves)

Lumbar (5)

L1, L2, L3, L4, L5

anterior (Lumbar plexus, Lumbosacral trunk) · posterior (Posterior branches of the lumbar nerves, Superior cluneal L1–L3)

Sacral (5)

S1, S2, S3, S4, S5

anterior (Sacral plexus) · posterior (Posterior branches of sacral nerves, Medial cluneal nerves)

Coccygeal (1)
anterior (Coccygeal plexus) · posterior (Posterior branch of coccygeal nerve)

M: PNS

anat(h/r/t/c/b/l/s/a)/phys(r)/devp/prot/nttr/nttm/ntrp

noco/auto/cong/tumr, sysi/epon, injr

proc, drug(N1B)

Categories:
Spinal nerves
Neuroanatomy stubs

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