<prompt> Saliva produced during stimulation by eating or by mechanical manipulation during dental procedures arises principally from the:Minor salivary glands.Submandibular, sublingual and minor salivary glands.Submandibular glands.Sublingual glands.  <response>: The total volume of saliva secreted by humans is approximately 750 to 1000 ml daily, of which submandibular accounts for 60, the parotid about 30 and the sublingual about 5 or less, and about 1 of saliva is derived from the minor salivary glands. 