Ultraviolet (UV) radiation from the sun is the number one cause of skin cancer, but UV light from tanning beds is just as harmful. Exposure to sunlight during the winter months puts you at the same risk as exposure during the summertime. Cumulative sun exposure causes mainly basal cell and squamous cell skin cancer, while episodes of severe blistering sunburns, usually before age 18, can cause melanoma later in life. Other less common causes are repeated X-ray exposure, scars from burns or disease, and occupational exposure to certain chemicals.
Spinal meninges are protective layers that cover the central nervous system, spinal roots and the spinal cord. Since these part of the body is the most complex because they control locomotor movements and affect our way of thinking, this must be protected.
The three types of spinal meninges are: dura mater, arachnoid meter and the pia mater. The outermost or the most superficial layer is the dura meter. It is composed of high collagen and fiber. Next to this is the arachnoid followed by the pia mater which is the layer closest to the spinal cord.
Surgical repair. i know this for certain.
