Keratinocytes - Composed of keratin, comprise 95 percent of the epidermis. They contain both proteins and lipids., Keratin - A fiber protein that provides resilience and protection to the skin. It is found in all layers of the epidermis, Stem cells - The mother cells that divide in the basal layer forming new daughter cells., Daughter cells - Move up through the layers before becoming hardened corneocytes of the stratum corneum., Stratum corneum - The horny layer is the outermost layer of the epidermis, Stratum Lucidum - The clear, transparent layer just never the skin surface; it consists of small cells through which light can pass., Stratum Granulosum - The granular layer consists of cells that look like distinct granules. As they become keratinized, the move to the surface and replace the cells shed from the stratum corneum., Stratum Spinosum - Also known as the spiny layer, Stratum Germinativum - The basal cell layer is the deepest layer,

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