WVSOM Class of 2012 Epithelium
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| what layer separates the epithelium from the underlying connective tissue? | basement membrane (basal lamina)
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| basal lamina and connective tissue form what? | basement membrane
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| basement membrane functions? | attachment, filtration, tissue compartmentalization, and confers cell polarity and shape
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| is basement membrane vascular? | no
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| stratified cells differ from simple cells how? | the stratified cells have multiple cells not attached to the basement membrane
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| simple squamous that lines the vascular system is called what? | endothelium
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| simple squamous that lines the body cavities is called what? | mesothelium
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| what type of simple squamous lines respiratory spaces? | pneumocytes
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| where are simple cuboidal cells located? | small ducts of exocrine glands and kidney tubules
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| where are simple columnar cells located? | small intestine and colon, gallbladder, stomach and gastric glands
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| pseudostratified ciliated columnar epithelium cells all attach where? | basement membrane
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| pseudostratified ciliated columnar epithelium cells located where? always have what feature? | trachea and bronchi lining, lining of vas deferens, epididymis; always have cilia
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| stratified cuboidal/stratified columnar are found where? | mammary, sweat glands, anorectal junction, and large ducts of exocrine glands
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| stratified squamous is found where? | epidermis, lining of oral cavity/esophagus, lining of vagina (can be keratinized or non-keratinized)
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| transitional cells found where? | renal calyces, bladder, urethra, ureter
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| endocrine glands have ducts or not? | no
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| unicellular glands are composed of a single cell; give an example: | goblet cells in tracheal epithelium
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| multicellular glands have what 2 portions? | duct and secretory portions
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| goblet cells secrete what? | mucus
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| serous secretions consist of what? example? | watery secretions rich in enzymes; parotid
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| mixed secretions make what two things? example? | mucus and serous; submandibular gland
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| serous glands stain what color? | pink
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| mucus glands stain what color? | clear
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| cells that release their contents by exocytosis? example? | merocrine; parotid gland
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| part of the secretory cell apical cytoplasm is released along with the contents? example? | apocrine; mammary gland
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| entire secretory cell and contents released? example? | holocrine; sebaceous gland
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| benign epithelial neoplasms are called what? | adenomas
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| malignant epithelial neoplasms that arise from any sheet-like or glandular epithelia? | carcinoma
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| malignant epithelial neoplasms that arise from glandular tissue? | adenocarcinoma
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| what are the primary functions of epithelium? | diffusion, transport, absorption, secretion
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| what kind of tissue lines the bowman's capsule | simple squamous
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| transformation of one cell type to another: | metaplasia
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| is metaplasia reversible? | yes
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| an abnormality in the appearance of cells indicative of an early step towardstransformation into a neoplasia: | dysplasia
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| benign epithelial neoplasm that arises from surface epithelia? | polyp
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