The dermis, the skin's next layer, is a thick layer of fibrous and elastic tissue (made mostly of collagen, with a small but important component of elastin) that gives the skin its flexibility and strength. The dermis contains nerve endings, sweat glands and oil (sebaceous) glands, hair follicles, and blood vessels.
âAll cancers are caused by genetic mutations, and in some cases we know the processes driving them, for example, tobacco smoking in lung cancer, however, our understanding of the causes of mutation in most cancers is remarkably limited,â Grimmond says.
Cancer is said to have countless causes-smoking, toxins, a genetic cause, a cause linked to abnormal protein production, an environmental cause, and a host of other factors.This is in all likelihood true, but it causes one to tend to miss the point.ancer is said to have countless causes-smoking, toxins, a genetic cause, a cause linked to abnormal protein production, an environmental cause, and a host of other factors.