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WVSOM Class of 2012 Epithelium

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


   





 
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