HUMAN NUTRITION

Detailed explanation-1: -The cloaca is an expanded, tubular structure that serves as the common opening of the digestive, reproductive and urinary systems, which opens to the outside of the bird as the vent. As in mammals, the large intestine’s primary function is absorption of water and electrolytes.

Detailed explanation-2: -Excretory System The cloaca is a multi-purpose opening; waste passes out of the body through it, birds mate by joining cloaca, and females lay eggs from it.

Detailed explanation-3: -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-4: -The ceca turns into the large intestine, which connects with the cloaca. Large Intestine: Functions primarily to absorb water, dry out indigestible foods and eliminate waste products. Cloaca: Where the digestive, urinary and reproductive systems meet.

Detailed explanation-5: -The digestion products are then absorbed through the intestinal mucosa into the blood. The intestine ends via the large intestine in the vent or cloaca which serves as the common exit for renal and intestinal excrements as well as for the laying of eggs.