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Dermatomes
dermatomes of the lower limb
| nerve | location |
|---|---|
| L1 | back, over the hip and groin |
| L2 | upper thigh |
| L3 | back, upper buttock, anterior thigh and knee, medial lower leg |
| L4 | medial buttock, lateral thigh, big toe |
| L5 | buttock, medial half of sole, 1st, 2nd and 3rd toes |
| S1 | little toe |
| S2 | posterior medial leg |
| S3 | groin |
| S4 | perineum, genitals, lower sacrum |
| S5 | anus |