Secretion of saliva increases when A. Touch receptors in the mouth ar

1.	Secretion of saliva increases when A. Touch receptors in the mouth are stimulated. B. The mouth is flushed with acid fluids with a pH of about 4. C. A subject thinks of unappetizing food. D. Vomiting is imminent. E. Their sympathetic nerve supply is stimulated.
Answer» A. True Food, foreign bodies and the dentist are effective stimuli. B. True E.g. lemon juice; saliva is a useful buffer to protect teeth from acid. C. False Thinking of appetizing food results in salivary secretion by a conditioned reflex; conversely, thinking of unappetizing food inhibits secretion. D. True Saliva helps to buffer the acid vomitus when it reaches the mouth. E. True Sympathetic stimulation produces a scanty viscid juice; parasympathetic stimulation produces a copious watery juice.

Secretion of saliva increases when A. Touch receptors in the mouth are stimulated. B. The mouth is flushed with acid fluids with a pH of about 4. C. A subject thinks of unappetizing food. D. Vomiting is imminent. E. Their sympathetic nerve supply is stimulated.

Answer»

A. True Food, foreign bodies and the dentist are effective stimuli.

B. True E.g. lemon juice; saliva is a useful buffer to protect teeth from acid.

C. False Thinking of appetizing food results in salivary secretion by a conditioned reflex; conversely, thinking of unappetizing food inhibits secretion.

D. True Saliva helps to buffer the acid vomitus when it reaches the mouth.

E. True Sympathetic stimulation produces a scanty viscid juice; parasympathetic stimulation produces a copious watery juice.

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