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47 Cards in this Set
- Front
- Back
simple squamous epithelium that lines blood and lymphatic vessels
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endothelium
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capillaries consist of what type of epithelium?
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endothelium
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simple squamous epithelium that lines major body cavities and covers the free outside surfaces of organs
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mesothelium
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what type of epithelium is skin?
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stratified squamous keratinized
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stratified cells that vary in form with functional state of organ
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transitional epithelium
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relaxed state of bladder epithelium
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stratified columnar or stratified cuboidal
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stretched state of bladder epithelium
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stratified squamous
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cells that change shape in response to environmental stimuli
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metaplasia
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sheet where all epithelia rest
composed of 2 layers |
basement membrane
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reticular lamina
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type III collagen
produced by fibroblasts continuous with underlying connective tissue, can be present in places like renal glomerulus |
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basal lamina
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type IV collagen
produced by epithelium basal surface of epithelial cells are attached by binding sites for GAGs such as laminin and heparin sulfate |
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length of motile processes of cilia
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~10µm long
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type of arrangement of cilia in microtubules
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9 + 2 arrangement
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Coordinated movements of ______ help luminal transport of materials like mucus like in the trachea
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cilia
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motility of microvilli
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non-motile
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characteristics of microvilli
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~ 1µm, absorptive, have actin core, striated border of intestinal epithelium, brush border of kidney
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ultrastructurally identical to microvilli
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stereocilia
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location of stereocilia
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epididymis
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intercellular mechanical attachment (spot)
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desmosome
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intercellular mechanical attachment (belt)
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zonula adherens
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seen as darkly staining dots or lines near apical surface of adjoining epithelial cells in intestine
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terminal bar apparatus
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glad that secretes onto epithelial surface or into duct
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exocrine gland
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goblet cells in epithelium of intestine or respiratory tract are what type of gland?
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exocrine
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example of serous acini
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pancreas
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serous acini are what type of cells?
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pyramidal
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shape of nucleus of serous acini
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spherical
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secretions of serous acini
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proteinaceous thin, watery, and has enzymes
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swollen mucous cells have forced out serous cells leaving small remnants of cytoplasm between mucous cells; artifact of routine immersion fixation
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serous demilune
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squamous
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flattened scale-like cells (usually have flattened nucleus)
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cuboidal cells
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cells as tall as they are wide ("cube" with round nucleus)
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columnar
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cells taller by 2x than they are wide (nucleus oval, parallel to long axis of cell)
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sheets of sensory receptor cells, such as the olfactory epithelium and the retina
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neuroepithelium
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epithelium that gives rise to spermatazoa
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germinal epithelium
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what types of glands are salivary glands and the exocrine portion of the pancreas?
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multicellular exocrine
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grapelike cluster
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acinus
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modified epithelial cells specialized for contraction
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myoepithelium
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secretions released via exocytosis
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merocrine secretions
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what type of glands secrete in a merocrine fashion?
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common sweat glands or eccrine
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secretion where large droplets of product are released from the apical surface of the cell and membrane is pinched off
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apocrine secretion
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example of apocrine secretion
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lipid portion of milk
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type of secretion where the whole cell is secreted or destroyed in the process of secretion
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holocrine
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example of holocrine secretion
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sebaccous gland
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secrete hormones directly into bloodstream
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endocrine glands
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cells that contain secretory granules in their apical cytoplasm and discharge materials directly onto surface of epithelium
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goblet cells
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cluster of secreting cells that discharge into a duct
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acinous
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cells that contain secretory granules in their apical cytoplasm and discharge materials directly onto surface of epithelium
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goblet cells
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cluster of secreting cells that discharge into a duct
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acinous
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