Sacral spinal nerve 2
The sacral spinal nerve 2 (S2) is a spinal nerve of the sacral segment.[1].
It originates from the spinal column from below the 2nd body of the sacrum
Muscles
S2 supplies many muscles, either directly or through nerves originating from S2. They are not innervated with S2 as single origin, but partly by S2 and partly by other spinal nerves. The muscles are:
References
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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)
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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)
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Lumbar (5) |
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Sacral (5) |
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Coccygeal (1) |
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anat(h/r/t/c/b/l/s/a)/phys(r)/devp/prot/nttr/nttm/ntrp
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noco/auto/cong/tumr, sysi/epon, injr
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