The esophagus, also known as the food pipe, transports food from the mouth to the stomach through rhythmic contractions called peristalsis, ensuring the smooth passage of food into the stomach.

The stomach expands when food enters it, and its muscular walls aid in mixing the food thoroughly with digestive juices, facilitating the breakdown of food particles and the initiation of protein digestion.

Peristaltic movements help push food forward along the digestive tract, ensuring it moves through each part of the gut for proper processing and absorption of nutrients.

The muscular tongue aids in the mechanical breakdown of food by moving it around the mouth while chewing. This movement helps to further mix the food with saliva, ensuring even distribution of digestive enzymes and facilitating the swallowing process.

The sensation of the mouth ‘watering’ is caused by the secretion of saliva by the salivary glands. This saliva moistens the food, making it easier to chew and swallow, and also contains enzymes that initiate the digestion of certain food ...