STAGES OF GRANULOCYTE DEVELOPMENT Flashcards
15-20
Myeloblast
15-21
Promyelocyte
12-18
Myelocyte
10-15
Metamyelocyte
9-15
Band (Stab or Staff Cell)
Segmented Neutrophils
Eosinophil
10-16
Basophil
Basophilic & scanty non-granular
Myeloblast
Basophilic & abundant
Promyelocyte
Primary granules start to appear
Promyelocyte
moderate amount w/ few specific granules
Myelocyte
Secondary granules start to appear
Myelocyte
Moderate to abundant w/ Specific granules (N, E, B) - insignificant cytoplasm
Metamyelocyte
Specific granules
Band
grainy cytoplasm (pink/rose-pink violet granules)
Segmented Neutrophils
red-orange refractile granules
Eosinophil
Sp. Granules contain histaminase (anti-parasitic), peroxidase (cyanide resistant), B-glucuronidase, arysulfatase, acid phosphatase (ACP), phospholipase, ribonuclease & cathepsin
Eosinophil
with few, large, densely-stained, dark purple to blue-black granules
Basophil
Granules contain heparin, Serotonin, peroxidase, histamine
Basophil