Saturday 9 July 2011

What is the physiological role of saliva?

What is the physiological role of saliva?

The main physiological role of saliva: one wet mouth and reconcile food, moist mouth was, talking and eating on the beneficial, as sufficient chewing, saliva fully reconcile, easy to swallow food groups, food flavored material is dissolved in saliva, stimulate the taste buds, in order to have sweet, sour, waiting for taste. Second, the saliva to maintain oral hygiene and to protect the oral effect, the secretion of saliva in the mouth helps to remove food debris, lest too long, bacteria, fermented smell; of acid and other harmful or irritating substances in strong will be diluted a lot of saliva Dental Equipment secretion, so as not to suffer from corrosion of the oral mucosa; saliva lysozyme bactericidal effect; saliva and mucin in the sodium bicarbonate can neutralize stomach acid, so saliva pharynx to the stomach, can greatly reduce gastric acidity. Third, the role of starch digestion, saliva salivary amylase can induce food starch broken down into maltose, salivary amylase digestion of starch strong role. Fourth, the saliva and caries and periodontal diseases related to prestige points in saliva contains calcium, ammonium and other inorganic salts, acid-producing bacteria are inhibited, and with the formation of dental calculus is closely related. The buffering effect of saliva on the enamel of minerals to maintain homeostasis play a key role.

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