Epidermis- thin, outer layer of stratified squamous epithlium, works blood vessels. consists of 4 layers in most areas, 5 layers in three skins.stratum basale is the deepest layer; by dermal blood vessels. As basal cells, older cells, called keratocytes, Migrate toward skin . As keratocyes harden, dehydrates and die, in a process called keratinization. These 4 layers of the epidermis are found in all areas of the body, Stratum basale- innermost layer, dividing layer, Stratum spinosum, Stratum granulosum, and Stratum cornsurfac- outermost layer; dead, flattened, keratinized
cells; these are continually being shed from the outer skin surface. Lastly Stratum lucidum- layer between the stratum granulosumthe stratum corneum, which is found only in the thick skin of the palms and soles. Special cells that produce the pigment, melanin. Melanin pigment provides skin and hair color; the more melanin is present, the darker the skin or hair will be.