From Angela Palmer,
Your Guide to Acne.
FREE Newsletter. Sign Up Now!

About.com Health's Disease and Condition content is reviewed by Casey Gallagher, MD

Definition: The innermost section of the skin, made up the papillary layer and the reticular layer. The dermis contains blood and lymph vessels, nerves, sweat and oil glands, hair follicles, and arrector pili muscles. The dermis nourishes and supplies blood to the epidermis.