Hello aspirant,

Saliva (also known as spit) is a fluid produced and secreted by salivary glands in the mouth. When food enters our mouth, our glands secrete saliva to start the digestion process. The enzymes found in saliva are essential in beginning the process of digestion. These enzymes also play an important role in breaking down food particles trapped within the teeth, thus protecting teeth from bacterial decay. There are various functions of saliva, and some of them are;

1. It acts as lubricant to prevent our mouth from drying up
2. Helps in digestion
3. Saliva is very important in the sense of taste.
4. Saliva maintains the pH of the mouth etc.

Hope this helped you.

Thank you.