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How Does the Skin Defend Against Disease?

How Does the Skin Defend Against Disease? thumbnail
How Does the Skin Defend Against Disease?

  1. The Skin Has Multiple Layers

    • For germs to get into your system, they must make it past three layers of skin. The epidermis or outer layer is constantly growing new skin cells and shedding old dead skin cells. The next layer is the dermis which contains nerve endings, blood vessels, oil glands, and sweat glands. The third and bottom layer of the skin is called the subcutaneous layer. Within these layers of skin are various components to fend against disease.

    The Skin Contains Oils and Bacteria to Fight Off Disease

    • The skin constantly secretes oils and other solutions that can help to naturally wash away germs. In addition, there is bacteria found on your skin which is harmless to you but destroys germs and potential invaders. For extra protection, within the level of the dermis there are many blood vessels. These blood vessels help to pick up waste and germs and so they can be excreted by the body.

    Other Skin Components That Fight Disease

    • Within the epidermis layer are Langerhans' cells. The cells work with your immune system to process antigens, which fight disease. When a foreign item is detected, these cells will ingest and then help to destroy the foreign particle.

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  • Photo Credit georgiahealthinfo.gov/cms/node/105866

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