What is orthochromatic erythroblast?
orthochromatic erythroblast + The final stage of the nucleated, immature erythrocyte, before nuclear loss. Typically the cytoplasm is described as acidophilic, but it still shows a faint polychromatic tint.
What does basophilic erythroblast mean?
basophilic erythroblast a nucleated precursor in the erythrocytic series, preceding the polychromatophilic erythroblast and following the proerythroblast; the cytoplasm is basophilic, the nucleus is large with clumped chromatin, and the nucleoli have disappeared. Called also basophilic normoblast.
What is meant by erythroblast?
erythroblast, nucleated cell occurring in red marrow as a stage or stages in the development of the red blood cell, or erythrocyte.
What is polychromatic erythroblast?
[ĕ-rith´ro-blast] a term originally used for any type of nucleated erythrocyte, but now usually limited to one of the nucleated precursors of an erythrocyte, i.e. one of the developmental stages in the erythrocytic series, in contrast to a megaloblast. In this usage, it is called also normoblast.
What is Polychromatophilic cells?
Polychromatophilia refers to how blood cells look under a microscope when the cells are stained with special dyes. It means there is more staining than normal with certain dyes. These cells have a blue-colored center. Increased reticulocytes are the result of the bone marrow making more red blood cells than normal.
What is Polychromatophilic normoblast?
Polychromatophilic Normoblast. In the polychromatophilic normoblast stage, the cytoplasm has begun to produce hemoglobin and, as a result, the color starts to shift from deep basophilic to a slate blue/gray shade. The cell continues to slowly shrink in size while the chromatin becomes much more knotted and clumped.
What is the difference between Orthochromatic erythroblast and a reticulocyte?
In the orthochromatic erythroblast, or normoblast, the nucleus becomes smaller and darker and the cytoplasm becomes pinker. The reticulocyte contains cytoplasm, cytoplasmic organelles, and many ribosomes.
Does erythroblast have granules?
Basophilic erythroblast (12-17 µm): Slightly smaller nucleus with slight chromatin condensation; increased cytoplasm and intensely blue (RNA abundance); no granules and no nucleoli present.