Dermatomes

This video tutorial defines dermatomes, how they are tested and why they are clinically important:
0:00. Introduction
0.14. Defining dermatomes
0:31. Clinical use of the term "dermatome"
1:01. Embryological use of the term "dermatome"
2:01. Segmental organization of dermatomes
2:26. Explanation for red dots on dermatomes image
4:03. Testing dermatomes on the body
6:59. Variations in dermatome maps
8:19. Practice Questions
10:59. Acknowledgements