Answer :
Our body's digestive system is responsible for the digestion and assimilation of food.
The part of the body that is called the food grinder is the mouth or the teeth.
- The mouth is called the oral cavity and helps in the physical digestion. It is the first part of the digestive system from where the processing of food starts.
- The food first gets into the mouth and by the process of mastication gets broken into smaller molecules.
- The food molecule gets mixed with the saliva in the mouth.
- There are glands present in the mouth called the salivary gland whose secretion helps in the process of digestion.
Therefore, the mouth is the food grinder.
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