Some codes represent errors. Most others simply communicate the status of the connection. Here are brief explanations for the most common status and error codes. The list below are standard HTTP codes. Numbers outside this list are proprietary to the Server or Client that you are using.
The human skin is the outer covering of the body. In humans, it is the largest organ of the integumentary system. The skin has up to seven layers of ectodermal tissue and guards the underlying muscles, bones, ligaments and internal organs. Human skin is similar to that of most other mammals.
Skin is one of the most amazing organs in the human body. It is hard for us to think about it as an organ, however. We tend to think of organs as boxy things. Your heart, liver, kidneys - those are obviously organs. By that definition, skin is definitely an organ. Skin is made up of very specific cells and tissues, and their collective purpose is to act as the boundary between you and the world. One of the neat things about skin that makes it different from a lot of other organs is the fact that it does have to deal with the real world.