APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Digestion begins in the mouth. The food is ground up by the teeth and moistened with saliva to make it easy to swallow. Saliva also has a special chemical, called an enzyme, which starts breaking down carbohydrates into sugars.

Detailed explanation-2: -The digestive process begins in the mouth when a person chews. Additionally, saliva includes an enzyme that initiates the breakdown of food’s carbohydrates. Saliva facilitates meal digestion and helps with the breakdown of carbohydrates.

Detailed explanation-3: -It begins at the mouth (buccal or oral cavity), passes through the pharynx, oesophagus or food pipe, stomach, small intestines, large intestines, rectum and finally ends at the anus. The food particles gradually get digested as they travel through various compartments of the alimentary canal.

Detailed explanation-4: -Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules.