Null cell

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Null Cell

A Null Cell (pronounced: nʌl sel) is a type of lymphocyte, a subtype of white blood cell, that lacks the characteristic markers of either T cells or B cells. They are part of the immune system and play a crucial role in the body's defense against diseases.

Etymology

The term "Null Cell" is derived from the Latin word "nullus" meaning "not any", referring to the absence of typical T or B cell markers.

Function

Null cells are primarily involved in the innate immune response. They include Natural Killer cells (NK cells), which are responsible for recognizing and eliminating cells infected with viruses and cancer cells.

Related Terms

  • Lymphocyte: A type of white blood cell in the vertebrate immune system.
  • T cells: A type of lymphocyte that plays a central role in cell-mediated immunity.
  • B cells: A type of lymphocyte that produces antibodies in response to antigens.
  • Natural Killer cells (NK cells): A type of cytotoxic lymphocyte critical to the innate immune system.

See Also

External links

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