Skin is the largest human organ by Michael Cummins, Sat 23 Dec '17

Skin is the largest human organ

"The skin is the human body’s largest organ, colonized by a diverse milieu of microorganisms, most of which are harmless or even beneficial to their host."

"Symbiotic microorganisms occupy a wide range of skin niches and protect against invasion by more pathogenic or harmful organisms. These microorganisms may also have a role in educating the billions of T cells that are found in the skin, priming them to respond to similarly marked pathogenic cousins."

"The perception of the skin as an ecosystem — composed of living biological and physical components occupying diverse habitats — can advance our understanding of the delicate balance between host and microorganism."

Elizabeth Grice and Julia Segre, National Institutes of Health, in The skin microbiome

 

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