Gizzard
Gizzard
Gizzard (/ˈɡɪzərd/), also known as the ventriculus, gastric mill, and gigerium, is an organ found in the digestive tract of some animals, including birds, reptiles, earthworms, and some fish. This specialized stomach constructed of thick, muscular walls is used for grinding up food, often aided by particles of stone or grit.
Etymology
The term "gizzard" comes from the Middle English giser, which came from the Old French gisier. The word is likely of Germanic origin and is related to the Old High German gizzi meaning "entrails, giblets".
Anatomy and Function
The gizzard is part of a bird's gastrointestinal tract. It follows the crop and precedes the intestine. The gizzard's primary function is to grind and break down food particles for further digestion in the intestine. This is accomplished by strong muscular contractions of the gizzard wall. In many species, the gizzard contains small pieces of grit or stone swallowed by the bird to aid in the mechanical breakdown of food.
In Other Animals
While most commonly associated with birds, gizzards are also found in other animals. For example, in earthworms, the gizzard is usually small and follows the crop and pharynx. In some fish, the structure and function of the gizzard is very similar to that of birds.
In Human Consumption
Gizzards are also a food source for humans and are often considered a delicacy in certain cultures. They are typically cooked by simmering until tender, and can be served in a variety of dishes.
External links
- Medical encyclopedia article on Gizzard
- Wikipedia's article - Gizzard
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