1. Mastication process:
Mastication is the process of chewing food in the mouth which breaks down food into smaller pieces and mixes it with saliva.
2. Formation of bolus:
The chewed food mixed with saliva forms a soft, moist, and rounded mass called the bolus which is easy to swallow.
3. Subsequent digestion:
The bolus is then pushed down the esophagus into the stomach for further digestion.