The Dermis

The dermis is 20 to 40 times thicker than the epidermis. This skin layer provides a flexible support structure and encloses blood vessels, nerves, and skin appendages (eccrine and apocrine sweat glands, hair follicles, and sebaceous glands).

Blood vessels in the dermis provide nutrition to the skin, help maintain a constant body temperature, and provide circulating white blood cells that help defend against infection and foreign substances.

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