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Details Title: Histology Description: Histology Vocab: Epithelial Tissues Total Flash Cards: 15 Created: 09/26/2007 18:24:04	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term free surface Definition uppermost row of cells adjacent to the passageway of the structure Term basement membrane Definition tissue to which the last row of ET cells are attached; a specialized type of extracellular material, is secreted by ET cells, helps to attach ET cells to underlying tissues Term cell connections Definition 1. mechanically bind cells together 2. help form a permeability barrier 3. provide a mechanism for intercellular communication Term desmosomes (CC) Definition disk shaped structures with adhesive glycoproteins that bind cells to one another Term hemidesmosomes Definition similar to 1/2 desmosome; attach ET cells to basement membrane Term tight junctions Definition ZIPLOC BAGGY hold cells together, form a permeability barries; consist of a zonula adherens & a zonula occludens Term zonula adherens Definition is located between the cell membranes of adjacent cells & acts like a weak glue that holds cells together Term zonula occludens Definition forms a permeability barrier, they prevent the passage of materials between cells; form a jigsaw arrangement to form a tight seal Term gap junction (end of CC's) Definition a small protein channel that provides a means of intercellular communication by allowing the passage of ions & small molecules between cells Term glands Definition secretory organ; most are comprised of ET cells with a supporting network of CT Term exocrine glands Definition glands w ducts (passageways), ducts are lined with ET Term endocrine glands Definition glands that have no ducts, their cellular products called hormones are secreted into the bloodstream Term merocrine glands Definition water producing sweat glands; they secrete products with no loss of cellular material Term apocrine glands Definition discharge fragments of the gland cells in the secretion; cell fragments pinch offl ex. milk producing mammary glands Term holocrine glands Definition shed entire cells; entire cell becomes part of the secretion; ex sebaceous (oil) glands