Which organ assists with mechanical digestion by positioning food for chewing?

The tongue plays a critical role in mechanical digestion by manipulating food in the mouth to facilitate effective chewing. As food is chewed, the tongue helps position it between the teeth, which aids in breaking down the food into smaller pieces. This process is essential for creating a consistency that is easier to swallow and digest. The tongue's muscular movements also help mix food with saliva, further enhancing the initial stage of digestion. By engaging in these actions, the tongue ensures that food is ready for the next step in the digestive process.