Between you and the rest of the world lies an interface that makes up 16% of your physical weight. This is your skin, the largest organ in your body: laid out flat, it would cover close to 1.7 square metres of ground. But besides keeping your organs in, what is its purpose? Emma Bryce takes us into the integumentary system to find out.
Learn about The Science of Skin in this TED-Ed lesson by Emma Bryce, animated by Mimi Chiu.
Follow this with The Science of Skin Color. Plus: What Really Causes Sunburns? and How do wounds heal & how do scars form?
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