ANATOMY

Detailed explanation-1: -Mechanical digestion in the oral cavity consists of grinding of food into smaller pieces by the teeth, a process called mastication.

Detailed explanation-2: -Mechanical Digestion The large pieces of food that are ingested have to be broken into smaller particles that can be acted upon by various enzymes. This is mechanical digestion, which begins in the mouth with chewing or mastication and continues with churning and mixing actions in the stomach.

Detailed explanation-3: -The tongue is a workhorse, facilitating ingestion, mechanical digestion, chemical digestion (lingual lipase), sensation (of taste, texture, and temperature of food), swallowing, and vocalization. The tongue perform three important digestive functions in the mouth: Position food for optimal chewing.

Detailed explanation-4: -Mechanical Digestion Begins When the Teeth Break Down Ingested Food. The movement of the jaw enables the teeth to grind food into small fragments.

Detailed explanation-5: -Mechanical digestion is a purely physical process that does not change the chemical nature of the food. It includes mastication, or chewing, as well as tongue movements that help break food into smaller bits and mix food with saliva.