Spinal cord segments: ∙ Cervical: 8 ∙ Thoracic: 12 ∙ Lumbar: 5 ∙ Sacral: 5 ∙ Coccygeal: 1 Total: 31 segments (31 pairs of spinal nerves). Quick note since this trips people up: there are only 7 cervical vertebrae but 8 cervical nerve/cord segments, because C1 nerve exits above C1 vertebra, and C8 exits below C7 vertebra (there’s no C8 vertebra).
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