Mrs. Kamienski A&P epithelial cells
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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Histology | study of tissues
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Tissues | a group of cells that perform the same function
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4 major types of tissues | epithelial, connective, muscle, nervous
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basement membrane | the underside of epithelial tissue which connects to connective tissue
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Simple Squamous function | diffusion of gases, filtration
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Simple Squamous locations | lungs, aveoli, capillaries
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Simple Squamous description | single layer of irregular, thin, flattened cells
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Simple Cuboidal function | secretion and absorption of glandular products
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Simple Cuboidal locations | ovaries, ducts of salivary, thyroid glands, kidneys
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Simple Cuboidal description | single layer of cube like cells with a centrally located nucleus
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Simple Culumnar function | absorption of nutrients, secretes digestive fluids
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simple Culumnar locations | linings of digestive system, reproductive system
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simple culumnar description | long column like cells whose nuclei are found around basement membrane, have goblet cells mixed in between and microvilli
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Microvilli | function to increase surface area for absorption
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Goblet cell | flask liked shaped glandular cells which secrete protective mucus on tissue to trap dirt/ debris
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psuedostratified culumnar desription | appears to be layered but isn't, has cilia which extend from the free surface and move constantly, goblet cells mixed in
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psuedostratified culumnar function | move mucus, sex cells along
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psuedostratified culumnar location | respiratory tract, tubes of reproductive system
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stratified squamous description | stacked squamous cells, layer on layer, oldest cells pushed outward
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stratified squamous function | forms outerlayer of skin, protection
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stratified squamous location | skin, mouth, vagina, anus, throat
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transitional description | when contacted looks like many layers of cells, when stretched looks like a thin layer of cells
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transitional function | specialized to withstand tension of movement and barrier to prevent waste from diffusion
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transitional locations | lining of bladder, urinary system
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glandular epithelium | cells specialized to secrete and produce substances
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gland | one or more cells usually culumnar or cuboidal that secrete substances
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Endocrine glands | secrete into tissue fluid or blood, 3 types: merocrine, apocrine, holocrine
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holocrine | releases entire cells like sebaceous glands
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apocrine | loose small portions of cells, mammary glands
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merocrine | secrete fluis without loss of cytoplasm, pancreas, salivary
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