PATHOLOGY

Detailed explanation-1: -The digestive system converts the foods we eat into their simplest forms, like glucose (sugars), amino acids (that make up protein) or fatty acids (that make up fats). The broken-down food is then absorbed into the bloodstream from the small intestine and the nutrients are carried to each cell in the body.

Detailed explanation-2: -Following digestion of nutrients by the digestive tract, glucose is absorbed by the intestinal epithelium and then released in the blood flow of the portal vein. Thus, the liver, via the portal vein, is perfectly located to regulate postprandial glucose levels through glucosensing mechanisms.

Detailed explanation-3: -The organs that take in food and liquids and break them down into substances that the body can use for energy, growth, and tissue repair. Waste products the body cannot use leave the body through bowel movements.