Amount of saliva secreted per day is : A. 250 ml B. 500 ml C. 750 ml D. 1000 ml
Option D.The normal daily production of saliva varies between 0.5-1.5 liters. The whole unstimulated saliva flow rate is approximately 0.3-0.4 ml/min. This rate decreases to 0.1 ml/min during sleep and increases to about 4 ml/min during eating, chewing and other stimulating actvities.
