Skin*

SKIN:

Skin is composed of different tissues that helps protect from sun rays that could enter the body. And it also helps regulate the body temp, and it restores water loss. Skin has vitamin D, that help the immune system and waste system. There are 2 layers, the first is the epidermis,squamous epithelium then the dermis, thicker and made out of elastic fibers. Collagen is inside the skin which help smooth the muscle tissue, nervous tissue, and the blood. There are types skin cancers and burns that can damage the skin.

SKIN CANCERS:

There are 1 million cases a year and it kept increase more and more each year.  There are three different types of skin cancer from the least to the more dangerous stages:Basel cell carcinoma,Squamous cell carcinoma,Melanoma. Skin cancer in most common in light skinned people that are usually outside a lot. Skin cancer has many different looks like flat or raised, dry, hard and different colors like black or brown.It is mostly found in the neck scalp or face. There are many ways to prevent from getting skin cancer.  Limiting recreational sun exposure, avoiding unprotected exposure to the sun during peak radiation times, wearing hats and tightly protecting clothing while outdoors. Also regularly using a waterproof sunscreen with UVA protection and SPF 30 or higher, and avoiding the use of tanning beds.

BURNS:

Common burns would be the minor sun burns that mostly everyone tends to get. A 1st degree burn injures the epidermis. It will heal most likely in a week or so without scaring. A 2nd degree burn damages the epidermis and the deep partial thinness. You get this burns from hot objects and it heals without scaring if it is not infected. And a 3rd degree destroys the epidermis, dermis, and structures of the skin. This cause skin the become very dry. This is cause by hot object, chemicals, flame, hot liquid. And it heals only if there is a growth epithelial cells.