A blood cell, also called a haematocyte, is a cell produced by haematopoiesis and normally found in blood. In mammals, these fall into three general categories:
Together, these three kinds of blood cells add up to a total 45% of the blood tissue by volume, with the remaining 55% of the volume composed of plasma, the liquid component of blood. This volume percentage (e.g., 45%) of cells to total volume is called hematocrit, determined by centrifuge or flow cytometry. Hemoglobin (the main component of red blood cells) is an iron-containing protein that facilitates transportation of oxygen and other respiratory gases to tissues.
Other articles related to "blood, blood cells, cells, cell, blood cell":
... Ancient Greek ἀναιμία anaimia, meaning lack of blood, from ἀν- an-, "not" + αἷμα haima, "blood") is a decrease in number of red blood cells (RBCs) or less than the normal quantity of hemoglobin in ... Since all human cells depend on oxygen for survival, varying degrees of anemia can have a wide range of clinical consequences ... Anemia is the most common disorder of the blood ...
... These include the cytostatic drugs that inhibit cell division, including the cloning of white blood cells that is a part of the immune response ... With mercaptopurine present, cells are not able to make DNA, and cell division is inhibited ... it is necessary to monitor the levels of mercaptopurine metabolites in the blood to establish the correct dosage for a patient ...
... Most signs and symptoms of AML are caused by the replacement of normal blood cells with leukemic cells ... A lack of normal white blood cell production makes the patient susceptible to infections while the leukemic cells themselves are derived from white blood cell precursors, they have no infection-fight ... A drop in red blood cell count (anemia) can cause fatigue, paleness, and shortness of breath ...
... company's main product line was an automated cell and urine analyzer, sold under the name Micro21 ... The Micro21 could perform the following white blood cell (WBC) differentials red blood cell morphology platelet estimates white blood cell (WBC) estimates reticulocyte ...
... in 1658 Dutch naturalist Jan Swammerdam was the first person to observe red blood cells under a microscope and in 1695, microscopist Antoni van Leeuwenhoek, also Dutch, was the first to draw an illustration ... No further blood cells were discovered until 1842 when French physician Alfred Donné discovered platelets ... Both men believed that both red and white cells were altered in disease ...
Famous quotes containing the words cell and/or blood:
“She that but little patience knew,
From childhood on, had now so much
A grey gull lost its fear and flew
Down to her cell and there alit,
And there endured her fingers touch
And from her fingers ate its bit.”
—William Butler Yeats (18651939)
“His white head hung out like a carpet bag
and his crotch turned blue as a blood blister,
and Godfather death, as it is written,
put a finger on his back
for the big blackout,
the big no.”
—Anne Sexton (19281974)