Coelomocyte

Coelomocyte is a type of cell found in the coelomic fluid of invertebrates, particularly echinoderms and annelids. These cells play a crucial role in the immune response of these organisms, functioning in a similar way to the white blood cells of vertebrates.

Etymology

The term "coelomocyte" is derived from the Greek words "koilos," meaning hollow, and "kytos," meaning cell. This refers to the fact that these cells are found in the coelomic cavity, a fluid-filled space that exists within the body of many invertebrates.

Types of Coelomocytes

There are several types of coelomocytes, each with its own specific function. These include:

• Phagocytic Coelomocytes: These cells are responsible for engulfing and destroying foreign substances and pathogens that enter the body. They are similar to the macrophages found in vertebrates.

• Vibratile Coelomocytes: These cells have cilia that allow them to move around in the coelomic fluid. They are involved in the transport of nutrients and waste products.

• Granular Coelomocytes: These cells contain granules filled with enzymes and other substances that can be released to fight off infections.

Function

Coelomocytes are a crucial part of the invertebrate immune system. They are involved in a variety of immune responses, including phagocytosis, encapsulation, and the production of antimicrobial substances. In addition to their immune functions, coelomocytes also play a role in wound healing and tissue regeneration.

Related Terms

• Coelom: The body cavity in which coelomocytes are found.
• Invertebrate: The group of animals that includes organisms with coelomocytes.
• Immune System: The system of the body responsible for defending against disease and infection.

See Also

• Echinoderm
• Annelid
• Phagocytosis
• Encapsulation (immunology)

Coelomocyte Resources
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