Cells of the Epidermis
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14 Terms
Keratinocytes are…
90% of epidermal cells
Keratinocytes produce…
keratin: a protein that helps the epidermis protect from abrasions/penetration and remain waterproof
Keratinocytes are created in…
the stratum basal but get pushed upward by new cells beneath them-as they approach the surface they flatten and die
Keratinocytes are shed…
millions of times a day-we get a completely new epidermis every 25-45 days
_____ stimulation keratinocyte production (ex. a callus of your foot)
friction
Langerhan cells are also called…
dendritic cells
Langerhan cells are created in….
the bone marrow-migrate to the stratum spinosum of the dermis
Langerhad cells ingest…
foreign substances and activate out immune system
Melanocytes are…
spider shaped
Melanocytes produce…
melanin: a pigment that determines hair, skin, and eye color
Melanocytes are only found in the…
stratum basal
Merkel cells are also called…
tactile epithelial cells
Merkel cells are found…
between the epidermis and dermis
Merkel cells sense…
light touch