ANATOMY

Detailed explanation-1: -The digestive process starts in your mouth when you chew. Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food.

Detailed explanation-2: -The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus. Helping them along the way are the pancreas, gall bladder and liver.

Detailed explanation-3: -The alimentary canal is the long tube of organs-including the esophagus, stomach, and intestines-that runs from the mouth to the anus. An adult’s digestive tract is about 30 feet (about 9 meters) long. Digestion begins in the mouth, well before food reaches the stomach.

Detailed explanation-4: -The mouth, or oral cavity, is the first part of the digestive tract. It is adapted to receive food by ingestion, break it into small particles by mastication, and mix it with saliva.

Detailed explanation-5: -Figure 2: The digestive processes are ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and defecation.