NEET PG DENTAL EXAM

Detailed explanation-1: -The majority of the digestive tract is composed of two muscular layers to allow for peristalsis-that is, the movement of food. The stomach, however, is composed of three layers, and is designed to account for mechanical digestion.

Detailed explanation-2: -The process of mechanical digestion continues in the stomach. This muscular organ churns and mixes the food it contains, an action that breaks any solid food into still smaller pieces. Although some mechanical digestion also occurs in the intestines, it is mostly completed by the time food leaves the stomach.

Detailed explanation-3: -After passage through the esophagus, the bolus will enter the stomach and undergo mechanical and chemical digestion. Mechanical digestion in the stomach occurs via peristaltic contractions of the smooth muscle from the fundus towards the contracted pylorus, termed propulsion.