The Kid Should See This

How do wounds heal? How do scars form?

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What happens when we get cut and bleed? How does skin scab over and heal? And why does skin scar? These two TED-Ed videos from MD-PhD candidate Sarthak Sinha go deep under our skin to give us a better understanding of how our bodies work to protect us.

First, explore the epidermis, dermis, and the four stages of the regenerative processβ€”hemostasis, vasoconstriction, inflammation, and phagocytosis: How a wound heals itself.

dermis

What is a scar? And where else in the body can scars or fibrotic scarring form beyond your skin? Then learn how scars form in this video:


Related exploration: Tissue Regeneration in Animals at HHMI Biointeractive.

Watch more videos about bodies of all kinds, human health, and our skin, including:
β€’Β Skin healing: A 33-day time-lapse in 10 seconds
β€’Β Why are your fingerprints unique?
β€’Β Lupita Nyong’o Loves Her Skin

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