Cortical thymic epithelial cells
Cortical Thymic Epithelial Cells
Cortical thymic epithelial cells (pronunciation: kor-ti-kal thahy-mik ep-i-thee-lee-uh l selz) are a type of epithelial cell found in the thymus, an organ of the immune system.
Etymology
The term "cortical" is derived from the Latin word "cortex", meaning "bark", and refers to the outer layer of an organ. "Thymic" refers to the thymus, and "epithelial" refers to the type of cell.
Function
Cortical thymic epithelial cells play a crucial role in the development of T cells, a type of white blood cell that is essential for immune responses. They provide signals for the positive selection of T cells, ensuring that only those T cells that can properly recognize antigens are allowed to mature and exit the thymus.
Related Terms
- Thymus: An organ of the immune system where T cells mature.
- Epithelial cell: A type of cell that lines the surfaces of your body. They are found on your skin, blood vessels, urinary tract, and organs.
- T cell: A type of white blood cell that is a key component of the immune system.
- Antigen: A substance that triggers an immune response, especially the production of antibodies.
External links
- Medical encyclopedia article on Cortical thymic epithelial cells
- Wikipedia's article - Cortical thymic epithelial cells
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