ANATOMY

Detailed explanation-1: -Figure 2: The digestive processes are ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and defecation.

Detailed explanation-2: -Food moves through your GI tract by a process called peristalsis. The large, hollow organs of your GI tract contain a layer of muscle that enables their walls to move. The movement pushes food and liquid through your GI tract and mixes the contents within each organ.

Detailed explanation-3: -The correct order in which food passes through alimentary canal is: Mouth, pharynx, esophagus, stomach, small intestine, large intestine, anus.

Detailed explanation-4: -The esophagus contracts as it moves food into the stomach. A “valve” called the lower esophageal sphincter (LES) is located just before the opening to the stomach. This valve opens to let food pass into the stomach from the esophagus and it prevents food from moving back up into the esophagus from the stomach.