GENERAL HISTOLOGY

Detailed explanation-1: -Pangolins lack teeth and grind their food in a gizzard-like structure.

Detailed explanation-2: -Stomach (Proventriculus/Gizzard): Principally the organ where food is broken into smaller units. It has two parts: the proventriculus for storage and the gizzard. The gizzard is a muscular part of the stomach that uses grit to grind grains and fiber into smaller particles.

Detailed explanation-3: -The second part of a bird’s stomach (a part we humans don’t have) is the gizzard or muscular stomach. The gizzard is very thick and muscular in some species, such as ducks, gallinaceous birds (those related to chickens such as grouse, quail, and turkeys), emus, and doves.

Detailed explanation-4: -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-5: -The gizzard uses stones that the earthworm eats to grind the food completely. The food moves into the intestines as gland cells in the intestine release fluids to aid in the digestive process. The intestinal wall contains blood vessels where the digested food is absorbed and transported to the rest of the body.