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granulocyte

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granulocyte

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Also known as polymorphonuclear leukocyte, polymorphonuclear cell, polymorphonuclear white blood cell, PMN, PML, PMNL, granular leukocyte, granulocytes

Granulocytes are cells in the innate immune system characterized by the presence of specific granules in their cytoplasm. Such granules distinguish them from the various agranulocytes. All myeloblastic granulocytes are polymorphonuclear, that is, they have varying shapes (morphology) of the nucleus (segmented, irregular; often lobed into three segments); and are referred to as polymorphonuclear leukocytes (PMN, PML, or PMNL). In common terms, polymorphonuclear granulocyte refers specifically to "neutrophil granulocytes", the most abundant of the granulocytes; the other types (eosinophils, baso

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Cell.Name
Granulocyte
Cell.Image
Types of granulocytes.png
Cell.Caption
Types of granulocytes
Cell.Width
320
Cell.System
Immune system

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~9 min read

Article

14 sections
Contents
  • Types
  • Neutrophils
  • Eosinophils
  • Basophils
  • Mast cells
  • Development
  • Function
  • Granule contents
  • Clinical significance
  • Additional images
  • See also
  • References
  • Bibliography
  • External links

Granulocytes are cells in the innate immune system characterized by the presence of specific granules in their cytoplasm. Such granules distinguish them from the various agranulocytes. All myeloblastic granulocytes are polymorphonuclear, that is, they have varying shapes (morphology) of the nucleus (segmented, irregular; often lobed into three segments); and are referred to as polymorphonuclear leukocytes (PMN, PML, or PMNL). In common terms, polymorphonuclear granulocyte refers specifically to "neutrophil granulocytes", the most abundant of the granulocytes; the other types (eosinophils, basophils, and mast cells) have varying morphology. Granulocytes are produced via granulopoiesis in the bone marrow.

==Types== thumb|Granulocytes with names derived from their staining (biology)|staining characteristics There are four types of granulocytes (full name polymorphonuclear granulocytes): Basophils Eosinophils Neutrophils Mast cells

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