ANATOMY

Detailed explanation-1: -Motility, digestion, absorption and secretion are the four vital functions of the digestive system. The digestive system breaks down the foods we eat into energy our bodies can use.

Detailed explanation-2: -The body expels waste products from digestion through the rectum and anus. This process, called defecation, involves contraction of rectal muscles, relaxation of the internal anal sphincter, and an initial contraction of the skeletal muscle of the external anal sphincter.

Detailed explanation-3: -• Six Functions of the Digestive System. Ingestion. Mechanical processing. Digestion. Secretion. Absorption. Excretion.