stratum corneum
the most superficial layer of the epidermis consisting of dead cells
keratinocyte
Cells made of Keratin, comprise of 95% of the Epidermis; move up thru the layers
stratum lucidum
Clear, transparent layer of the epidermis under the stratum corneum found only in "thick skin" of the palms and soles of feet.
stratum granulosum
a layer of the epidermis that marks the transition between the deeper, metabolically active strata and the dead cells of the more superficial strata. Cells contain keratin and oily waterproofing.
stratum spinosum
This epidermis layer is eight to ten cell layers thick. These are living cells which contain melanocytes and keratinocytes. The cells look prickly under a microscope.
melanocyte
epidermal cells in the stratum spinosum that synthesize the pigment melanin, which protects the body from ultraviolet light and suppresses vitamin-D production
stratum basale
the deepest layer of the epidermis consisting of stem cells capable of undergoing cell division to form new cells
dermis
The sensitive inner layer of the skin.
epidermis
An outer layer of skin cells designed to provide protection
papillary layer
Outermost layer of the dermis, directly underneath the epidermis
reticular layer
the deeper layer of the dermis that supplies the skin with oxygen and nutrients and contains sweat and oil glands is the
arrector pili muscle
Smooth muscles whose contractions force hairs to stand erect, causes goose bumps.
hair shaft
The portion of hair that projects above the skin is the
hair root
The part of the hair located below the surface of the epidermis.