HUMAN NUTRITION

Detailed explanation-1: -Birds with thick gizzards frequently pick up grit-little stones, sand, and small shells. These items collect in the gizzard. When food and digestive juices enter the gizzard, the thick muscles and grit help pulverize the food.

Detailed explanation-2: -The gizzard is a muscular part of the stomach that uses grit to grind grains and fiber into smaller particles.

Detailed explanation-3: -The gizzard is the mechanical stomach of a bird. It is located just after the true or glandular stomach in the gastrointestinal system. Since poultry have no teeth and swallow feed whole, this muscular organ, sometimes called hen’s teeth, mechanically grinds and mixes the bird’s feed.

Detailed explanation-4: -gizzard, in many birds, the hind part of the stomach, especially modified for grinding food. Located between the saclike crop and the intestine, the gizzard has a thick muscular wall and may contain small stones, or gastroliths, that function in the mechanical breakdown of seeds and other foods.

Detailed explanation-5: -This specialized stomach constructed of thick muscular walls is used for grinding up food, often aided by particles of stone or grit. In certain insects and molluscs, the gizzard features chitinous plates or teeth.