DERMATOMES-HEAD TO UMBILICUS

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SUMMARY

1. C1: no skin supply
2. C2: posterior neck & occiput
3. C3: posterior neck & supraclavicular region
4. C4: infraclavicular region (1st thoracic interspace), tip of the shoulder & above the scapular spine
5. C5: lateral arm (over the deltoid and below)
6. C6: lateral forearm & thumb
7. C7: middle finger
8. C8: ring & little fingers
9. T1: medial elbow (epicondyle)
10. T2: medial arm, axilla & thorax (adjoining C3 & 4)
11. T3: axilla & thorax
12. T4: nipple
13. T6: xiphisternum
13. T8: rib margin
14. T10: umbilicus

Paste-715380957ae8ea64f3fabf35a4949284f0764b34.jpg

Image: Dermatome map. American Spinal Cord Injury Association (ASIA) Impairment Scale [Accessed 12 Apr. 2019].


Reference(s)

R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone. Get it on Amazon.
Drake, Richard L., et al. Gray's Anatomy for Students. Elsevier, 2023. Get it on Amazon.