Hematology Definitions Flashcards
Leukocyte
White blood cell
Cytoplasm
The protoplasm of a cell surrounding the nucleus
Granules
A small particle or grain
Granulocyte
Any cell containing granules in cytoplasm
Agranulocyte
A leukocyte without definite cytoplasmic granules
Vacuoles
A space or cavity in the cytoplasm of all(looks like a bubble)
Nucleus
A spheroid body within cell
Chromatin
The material in nucleus that’s stained with basic dyes
Diff quick aka dip quick
Wright stain used to make a differential WBC count
Monolayer
Area on blood smear that cells are arranged in one layer
cytosis
Condition in which there is/increase
penia
Condition in which there is/deficiency
philia
Condition in which there is/tendency toward
Phagocyte
Any cell that ingests micro organisms or other cells and foreign particles - some WBC are phagocytes - eat to destroy foreign materials
Neutrophil
Granular, phagocytic leukocyte that has a nucleus with 3-5 lobes(segments)
Band aka stab cell
Immature neutrophil(no segments)
Eosinophil
Pink/red granulated, phagocytosis Leuko yet that has a nucleus with 2 lines connected by thread of chromatin
Basophil
Purple granulated leukocyte with an irregularly shaped, pale staining nucleus
Monocyte
Non-granular, vaculated phagocytic leukocyte with an ovoid or kidney shaped nucleus
Lymphocyte
Non-granular leukocytethat is mononuclear with pale blue staining cytoplasm
Differential count
Count of 100 WBCs on a stained blood smear to assist in diagnosis
Absolute count
Obtained by multiplying the percent of each cell type by the total WBC- unit represented as mm to the third power or ul
Relative count
Number of different types of WBC present in the differential count as a percent
