Accessibility View NARRA DERMATOLOGY AND AESTHETICS MENU Welcome! > Articles > Anatomy of the Skin Skin. It is the largest organ on the human body. It creates a protective layer against heat, light, the environment, injury and infection. It helps regulate the body's temperature; stores water, fat and Vitamin D; prevents entry of bacteria; and acts as a sensory organ. On average, an adult has between 18 and 20-square feet of skin, which roughly weighs six pounds. There are three layers to skin: Epidermis. This is the outer most layer that sloughs off dead skin cells and acts as a protective barrier against foreign bodies, infections and the sun. The epidermis also contains the cells (melanocytes), which are responsible for skin pigmentation. Dermis. The middle layer of skin, the dermis houses hair follicles, sebaceous (oil) glands, sweat glands, capillaries (small blood vessels) and lymph vessels. It is held together by a protein called collagen. Sweat glands are part of the body's cooling system. The dermis also contains touch and pain receptors. Subcutaneous. This is the deepest layer of skin containing larger blood vessels and nerves. It is made up of a network of collagen and fat cells and plays an important role in the manufacture of Vitamin D, protecting against injury and conserving body heat. CATEGORIES What is a Dermatologist? Anatomy of the Skin Skin Care Topics Skin Conditions Skin Growths Skin Infections Contact Us We Look Forward To Hearing From You. Please do not submit any Protected Health Information (PHI). 710 NW Juniper Street Suite 204, Issaquah, WA, 98027, US × + − Leaflet | Map data provided by Internet Brands Monday: 9:00AM-4:30PM (hours may vary) Tuesday: 9:00AM-5PM (hours may vary) Wednesday: Closed Thursday: 9:00AM-5:00PM (hours may vary) Friday: 9:00AM-4:30PM (hours may vary) Saturday: Closed Sunday: Closed 710 NW Juniper Street Suite 204 Issaquah, WA 98027 (425) 677-8867 Home Staff Cosmetic Services Medical Services New Patients Contact Us COVID-19 Clinic Updates COPYRIGHT © 2021 MH SUB I, LLC DBA OFFICITE. ADMIN LOG IN SITE MAP