HUMAN NUTRITION

Detailed explanation-1: -In a bird’s digestive system, the crop is an expanded, muscular pouch near the gullet or throat. It is a part of the digestive tract, essentially an enlarged part of the esophagus. As with most other organisms that have a crop, it is used to temporarily store food. Not all bird species have one.

Detailed explanation-2: -Crop glands: The secretion called “crop milk or pigeons milk” is secreted by these glands. Gastric glands: secrete gastric juice. Tubular glands: These glands are pre-sent on the internal lining of gizzard. The fluid secreted by these glands is thick, yellowish green in colour.

Detailed explanation-3: -Many species of birds have an enlarged area of the esophagus known as a crop. The crop is well developed in most species and serves as a temporary storage location for food. The crop also allows food to be softened before it enters the stomach.

Detailed explanation-4: -birds. …the stomach forms a thin-walled crop, which is the bird’s principal organ for the temporary storage of food. Some birds use the crop to carry food to their young.

Detailed explanation-5: -The two important parts of a bird’s digestive tract are-Crop & Gizzard. The crop is a sac-like part used to keep and moisten food before digestion, whereas Gizzard is used to store the swallowed stones, which help digest the food more quickly.