Anatomy and Cell Biology 3309 Lecture Notes - Lecture 6: Salivary Gland, Submandibular Gland, Parotid Gland
7 Mar 2017
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Basal cell supporting cell innervated (synaptic remodelling) & express receptor molecules for taste sensory cells. Taste qualities and natural stimuli detected by taste receptors. Major components of saliva: lysozyme: digestive enzyme (bacterial wall, located in small intestine and saliva, major function: control of bacterial growth, amylase: digestive enzyme (starch, major function: breakdown of food. Saliva secretion: saliva contains: water, mucin, protein, ions, digestive enzymes, functions: lubrication, washing the mouth, moistening the food. Intercalated duct: lead away from salivary gland acinus and carries iso-osmotic saliva: striated duct: modifies the iso-osmotic saliva (i. e. removes nacl, gets hypo-osmotic saliva as a result; lots of resorption occurring. Intralobular ducts get larger and run in between lobules/lobes to form interlobular ducts and then lobar duct: as the duct gets larger, epithelium can become stratified. Secretory acini and myoepithelial cells: star shaped cells that are interconnected with one another, contain a lot of f-actin, contractile; facilitates movement of secretion into ducts.
