leucocyte


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Related to leucocyte: Lymphocytes

leucocyte

See leukocyte.

leu·ko·cyte

(lū'kō-sīt)
A type of cell formed in the myelopoietic, lymphoid, and reticular portions of the reticuloendothelial system in various parts of the body, and normally present in those sites and in the circulating blood. Under various abnormal conditions, the total number of leukocytes may be increased or decreased or their relative proportions altered, and they may appear in other tissues and organs. Leukocytes represent three lines of development from primitive elements: myeloid, lymphoid, and monocytic series. On the basis of features observed with various methods of staining with polychromatic dyes, cells of the myeloid series are frequently termed granular leukocytes, or granulocytes; because the cytoplasmic granules of lymphocytes and monocytes are smaller and frequently not clearly visualized with routine methods, these cells are sometimes termed nongranular or agranular leukocytes. Granulocytes are commonly known as polymorphonuclear leukocytes (also polynuclear or multinuclear leukocytes), because in a mature cell the nucleus is divided into two to five rounded or ovoid lobes that are connected with thin strands or small bands of chromatin; they consist of three distinct types: neutrophils, eosinophils, and basophils, named on the basis of the staining reactions of the cytoplasmic granules. Cells of the lymphocytic series are smaller than other leukocytes and have relatively large, darkly staining, eccentrically placed nuclei. Cells of the monocytic series are usually larger than the other leukocytes and are characterized by a relatively abundant, slightly opaque, pale blue or blue-gray cytoplasm that contains many fine reddish-blue granules. Monocytes are usually indented, reniform, or shaped similarly to a horseshoe, but are sometimes rounded or ovoid; their nuclei are usually large and centrally placed and, even when eccentrically located, are completely surrounded by at least a small band of cytoplasm.
Synonym(s): white blood cell, leucocyte.
[leuko- + G. kytos, cell]

leucocyte

Any kind of white blood cell. The leukocytes include the neutrophil POLYMORPHONUCLEAR LEUKOCYTES (‘Polymorphs’), EOSINOPHILS, BASOPHILS, LYMPHOCYTES and MACROPHAGES.

leu·ko·cyte

(lū'kō-sīt)
Cell formed in myelopoietic, lymphoid, and reticular portions of the reticuloendothelial system in various parts of the body, and normally present in those sites and in the circulating blood.
Synonym(s): white blood cell, leucocyte.
[leuko- + G. kytos, cell]

leucocyte

leukocyte.

Patient discussion about leucocyte

Q. can i get a short explanation about white blood cells and their job? what does it mean if i have a insafition

A. White blood cells (WBC's) are the ones responsible for the immune system in the body. The white blood cell count rises in cases of infection, steroid use and other conditions. A low white blood cell count can have many causes, which need to be further evaluated by a doctor.

More discussions about leucocyte
References in periodicals archive ?
The leucocyte and platelet counts, neutrophil and eosinophil differential counts, and MPV were measured using an automated hematology analyzer (BC 5800, Mindray, Shenzhen, China).
Receiver operating characteristic (ROC) curves were used for the evaluation of the diagnostic value of the laboratory parameters D-dimer, CRP, and leucocytes count.
The parameters analyzed are total leucocyte count (TLC); absolute eosinophil count (AEC); and differential leucocyte count (DLC) of neutrophils, lymphocytes, monocytes, eosinophils, and basophils.
10 In this study we planned to investigate the results of MPV, leucocyte, neutrophil and CRP values based on the pathology results in patients undergoing appendectomy with an early diagnosis of AA.
There were no significant differences between the groups in terms of age, mass, comorbid disease (HIV and diabetes mellitus) and leucocyte count at baseline.
As an inference, it has been thought that smoking may, in part, explain the changed level of blood pressure, total and differential leucocyte count (TLC), eosinophil count and monocyte count.
One aliquot was tested by the resident obstetrician in the antenatal clinic using reagent dipsticks (Lab Strip U11 Plus) to detect the presence of leucocyte esterase and nitrite, according to the manufacturer's instructions.
The leucocyte count, percentage of neutrophils CRP and creatinine levels were significantly higher in hyponatremic patients compared with those of normonatremic patients.
Infected knee prosthesis: Diagnosis with indium leucocyte, Tc-99m sulfur colloid, Tc-99m MDP imaging.
Mean and standard deviation for the age while frequency and percentages were presented for Gender, Total Leucocyte Count, Free fluid in peritoneal cavity, Perianastomotic abscess and fistula.
Is the human leucocyte antigen B*5701 predicted by sequence variations of HIV-1 subtype F reverse transcriptase?