What os saliva???????
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Saliva is a clear, slightly acidic mucoserous exocrine secretion. Whole saliva is a complex mix of fluids from major and minor salivary glands and from gingival crevicular fluid, which contains oral bacteria and food debris.
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watery liquid secreted into the mouth by glands, providing lubrication for chewing and swallowing, and aiding digestion.
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