Anatomy of the Skin
Our team of professionals and staff believe that informed patients are better equipped to make decisions regarding their health and well-being. For your personal use, we have created an extensive patient library covering an array of educational topics. Browse through these diagnoses and treatments to learn more about topics of interest to you. You may also follow the links to reliable sources such as the American Acadamy of Dermatology. As always, you can contact our office to answer any questions or concerns.
- Skin Cancers
- Anatomy of the Skin
- What is a Dermatologist?
- Skin Care Topics
- Skin Conditions
- Skin Growths
- Skin Infections
- How to perform a self-exam
http://www.aad.org/ - American Acadamy of Dermatology
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.