ANATOMY

Detailed explanation-1: -Peristalsis also works in this organ, moving food through and mixing it with digestive juices from the pancreas and liver. The duodenum is the first segment of the small intestine. It’s largely responsible for the continuous breaking-down process.

Detailed explanation-2: -Esophagus: The esophagus is a muscular tube that connects the pharynx (throat) to the stomach. The esophagus contracts as it moves food into the stomach.

Detailed explanation-3: -It produces intestinal juice from the glands present in its wall. The intestinal juice helps in the further digestion of food. Small intestine also obtains digestive juices from the liver and pancreas that helps in the mixing of food.