Skin is the outer covering of the body. The skin is the largest organ of the body, and it performs a number of vital functions. It serves as a protective barrier against microorganisms. It helps shield the delicate, sensitive tissues underneath from mechanical and other injuries. It acts as an insulator against heat and cold, and helps eliminate body wastes in the form of perspiration. It guards against excessive exposure to the ultraviolet rays of the sun by producing a protective pigmentation, and it helps produce the body’s supply of vitamin D. Its sense receptors enable the body to feel pain, cold, heat, touch, and pressure. The skin consists of two main parts: an outer layer, the epidermis, and an inner layer, the corium (or dermis).
Here is an amazing demonstration of skin repair after severe burns.
Burn victims are making incredible recoveries thanks to a revolutionary ‘gun’ that sprays stem cells on to their wounds, enabling them to rapidly grow new skin. People who suffer extensive burns usually have to endure weeks or even months of treatment, with surgeons taking large sheets of skin from elsewhere on the body and grafting them. That process is painful, and patients are often left with permanent, unsightly scars.
Now, US doctors are using a new technique that allows patients to regrow a new layer of healthy skin in as little as four days as shown in the video. Patients who have benefited say their new skin is virtually indistinguishable from that on the rest of the body.
Thomas Bold, chief executive of RenovaCare, the company behind SkinGun, said: ‘The procedure is gentler – and the skin that regrows looks, feels and functions like the original skin.’