BIOL 1220 Chapter Notes - Chapter 5: Earwax, Sodium Chloride, Melanocyte
6 Nov 2016
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Chapter 5: integumentary system: name the cells that make up the epidermis and briefly describe the function(s) of each. Describe the changes that occur in the cells as they migrate through the epidermis: layers of the epidermis. The epidermis is made up of 95% keratinocytes but also contains melanocytes, langerhans cells, Thestratum basale is primarily made up of basal keratinocyte cells, which can be considered the stem cells of the epidermis. Tactile cells-touch receptors: keratinocytes: keratin cells that is a fibrous protein that gives the skin its durability and protective abilities. produces keratin, melanocytes: produce melanin, provides a protective shield around the skin during sun exposure. Protects against uv light, a concentration of melanin is a freckle. Produce melanin (freckles: dendritic cells: role in immunity, tactile (merkel) cells: work as sensory cells. Name the tissue types composing the epidermis and dermis. Epidermis: (bring, some, good, loving, chocolate)- stratified squamous epithelium tissue.
