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View full lesson: http://ed.ted.com/lessons/how-a-wound-heals-itself-sarthak-sinha
Our skin is the largest organ in our bodies, with a surface area of about 20 square feet in adults. When we are cut or wounded, our skin begins to repair itself through a complex, well-coordinated process. Sarthak Sinha takes us past the epidermis and into the dermis to investigate this regenerative response.
Lesson by Sarthak Sinha, animation by Karrot Animation.