Granulopoiesis Flashcards
earliest recognizable granulocyte precursor using light micrscope
Myeloblast
synthesis of primary granules begins & ends here
Promyelocyte
primary granules are rich in
peroxidase
primary granules
azurophilic, nonspecific
synthesis of secondary granules
-last stage to undergo mitosis
Myelocyte
- nucleus becomes indented
- indention of nucleus must be less than half the width of the nucleus
- synthesis of tertiary granules
Metamyelocyte
other name for metamyelocyte
Juvenile cell
other name for tertiary granules
gelatinase granules
shape of metamyelocyte
kidney bean or peanut shaped
- are normally present in small amounts in the peripheral blood
- secretory granules
- counts as neutrophil
Band (Stab Staff Cell)
Band is also known as
Immature cell
- nonsegmented neutrophil, neutrophil staff or stab
- filaments are not present
Neutrophil
nucleus of neutrophil
- 2 to 5 segments connected by threadlike filaments
- elongated, curve or sausage shaped w/ round ends
cytoplasm of neutrophil
- pink to tan w/ violet or lilac granules
- identical to the PMN
pools in the bone marrow
- stem cell pool
- mitotic pool
- storage pool
acronym PMN
polymorphonuclear cells
pools in peripheral blood
circulating
marginal
pool in PB found in plasma
Circulating
pool in PB found adhering to blood vessel wall
Marginal
-contain myeloperoxidase acid, defensis etc
Primary or Azurophilic granules
increased level of neutrophil
- bacterial infection, leukemia
neutrophilia
- decrease level of neutrophil
- nutrient defficiency
Neutropenia
extreme neutropenia
-adverse drug effect
Agranulocytosis
nucleus of eosinophil
dark, purple, usually band shaped or segmented into only 2 segments