Health Sciences 2300A/B Lecture Notes - Lecture 3: Loose Connective Tissue, Merkel Cell, Epithelium
27 Sep 2017
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2 layers of skin: epidermis and the dermis epidermis, epi dermis = above below it is hypodermis (hypo = below) this is not a part of the skin, it is a layer of fat. -> outer layer of the skin: made up almost entirely of epithelial tissue, most of the cells are keratinized squamous epithelium (makes about 90% cells) Keratinocytes = the more common name for the cells, carry a small grain/granules and it carries the pigment of the skin. Melanocytes = protects from uv rays, they produce melanin, then the keratinocytes take up the melanin: comes down to the type and amount of melanin that is produced that determines color. Merkel cells = sensory cells, tactile cells, sense of touch will be picked up my merkel cells. Langerhans = immune cells, that scavenge around and pick up foreign material. *the ink of a tattoo is place in the .
