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Dermatomes Listing
Dermatome
| Innervation Level: | Area of Skin: |
|---|---|
| C1 | Vertex of skull |
| C2 | Temple, forehead, occiput |
| C3 | Entire neck, posterior cheek, temporal area, prolongation forward under mandible |
| C4 | Shoulder area, clavicular area, upper scapular area |
| C5 | Deltoid area, anterior aspect of entire arm to base of thumb |
| C6 | Anterior arm, radial side of hand to thumb and index finger |
| C7 | Lateral arm and forearm to index, long and ring fingers |
| C8 | Medial arm and forearm to long, ring and little fingers |
| T1 | Medial side of forearm to base of little finger |
| T2 | Medial side of upper arm to medial elbow, pectoral and midscapular areas |
| T3-12 | T3-6: upper thorax; T5-7: costal margin; T8-12: abdomen and lumbar region |
| L1 | Back, over trochanter and groin |
| L2 | Back, front of thigh to knee |
| L3 | Back, upper buttock, anterior thigh and knee, medial lower leg |
| L4 | Medial buttock, lateral thigh, medial leg, dorsum fo foot, big toe |
| L5 | Buttock, posterior and lateral thigh, lateral aspect of leg, dorsum of foot, medial half of sole, first, second and third toes |
| S1 | Buttock, thigh and posterior leg |
| S2 | Buttock, thigh and posterior leg |
| S3 | Groin, medial thigh to knee |
| S4 | Perineum, genitals, lower sacrum |