HUMAN NUTRITION

Detailed explanation-1: -Mouth. 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.

Detailed explanation-2: -Mechanical and chemical digestion begin in the mouth with the chewing of food and the release of saliva, which starts carbohydrate digestion.

Detailed explanation-3: -Digestion begins in the mouth, when you chew and swallow, and is completed in the small intestine.

Detailed explanation-4: -Oesophagus. The oesophagus is the muscular tube that carries food from the mouth to the stomach after it is swallowed. A ring of muscle at the end of the oesophagus relaxes to let food into the stomach and contracts to prevent stomach contents from escaping back up the oesophagus.

Detailed explanation-5: -Your mouth is part of your digestive system. This oval-shaped opening in your skull starts at your lips and ends at your throat. Your mouth allows air and nutrients to enter your body, and it also helps you speak. It’s also called the oral cavity.