Granular cell
Granular cell
Granular cell (pronunciation: grəˈnjuːlər sɛl) is a type of cell found in various tissues and organs of the body. These cells are characterized by their granular appearance under the microscope, which is due to the presence of numerous cytoplasmic granules.
Etymology
The term "granular cell" is derived from the Latin words "granulum", meaning "small grain", and "cella", meaning "small room". This refers to the granular appearance of these cells under the microscope.
Description
Granular cells are found in various tissues and organs, including the skin, nervous system, respiratory system, and digestive system. They are involved in various physiological processes, such as inflammation, immune response, and tissue repair.
The granules in these cells are lysosomes, which contain various enzymes that are involved in the breakdown of cellular waste products. The presence of these granules gives the cells their characteristic granular appearance.
Related terms
- Granular cell tumor: A rare type of tumor that is composed of granular cells. It can occur in various parts of the body, but is most commonly found in the skin or mouth.
- Granular cell myoblastoma: A benign tumor that is composed of granular cells. It is most commonly found in the tongue.
- Granular cell astrocytoma: A type of brain tumor that is composed of granular cells. It is a rare type of glioma, which is a tumor that arises from the supportive tissue of the brain.
See also
External links
- Medical encyclopedia article on Granular cell
- Wikipedia's article - Granular cell
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