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.
Causes of cervical cancer. In almost all cases, cervical cancer is the result of a change in cell DNA caused by the human papillomavirus (HPV).Cancer begins with a change in the structure of the DNA that's present in all human cells. DNA provides the cells with a basic set of instructions, including when to grow and reproduce.auses of cervical cancer. In almost all cases, cervical cancer is the result of a change in cell DNA caused by the human papillomavirus (HPV).