epidermis keratin melanin dermis exocrine gland sweat gland oil gland sebum

Word Roots and Origins

Epidermis from the Greek epi, meaning "on" or "upon," and derma, meaning "skin"

Integumentary System

The integumentary system, consisting of the skin, hair, and nails, acts as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.

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