once the teeth start grinding food, is produced to make food moist and slippery.

once the teeth start grinding food, is produced to make food moist and slippery.

once the teeth start grinding food, is produced to make food moist and slippery.

Answer

Brief Explanations:

Saliva is secreted by salivary glands in the mouth when teeth start grinding food. It helps in moistening and lubricating the food for easier swallowing.

Answer:

Saliva