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Red blood cells ( RBCs ), scientific name erythrocytes (from ancient Greek erythros 'red' and kytos 'hollow vessel', with -cyte translated as 'cell' in modern usage), also known as red cells, [1] erythroid cells, and rarely haematids, are the most common type of blood cell and the vertebrate 's principal means of delivering oxygen (O 2) to the ...
Rouleaux formation on wet smear. Rouleaux (singular is rouleau) are stacks or aggregations of red blood cells (RBCs) that form because of the unique discoid shape of the cells in vertebrates.
Schamberg's disease is caused by leaky blood vessels near the surface of the skin, capillaries, which allow red blood cells to slip through into the skin. The red blood cells in the skin then fall apart and release their iron, which is released from hemoglobin. [3]
Polychromasia is a disorder where there is an abnormally high number of immature red blood cells found in the bloodstream as a result of being prematurely released from the bone marrow during blood formation ( poly - refers to many, and -chromasia means color .) These cells are often shades of grayish-blue.
In microcytic anemia, the red blood cells (erythrocytes) contain less hemoglobin and are usually also hypochromic, meaning that the red blood cells appear paler than usual. This can be reflected by a low mean corpuscular hemoglobin concentration (MCHC), a measure representing the amount of hemoglobin per unit volume of fluid inside the cell ...
Wright's stain is a hematologic stain that facilitates the differentiation of blood cell types. It is classically a mixture of eosin (red) and methylene blue dyes. It is used primarily to stain peripheral blood smears, urine samples, and bone marrow aspirates, which are examined under a light microscope. In cytogenetics, it is used to stain ...
The condition is autosomal recessive and is caused by mutations in the SLC11A2 gene. The condition prevents red blood cells from accessing iron in the blood, which causes anemia that is apparent at birth. It can lead to pallor, fatigue, and slow growth.
Erythrocyte aggregation. Erythrocyte aggregation is the reversible clumping of red blood cells (RBCs) under low shear forces or at stasis. Erythrocytes aggregate in a special way, forming rouleaux. Rouleaux are stacks of erythrocytes which form because of the unique discoid shape of the cells in vertebrate body.
Erythrocyte antibody rosetting (EA-rosetting), occurs when an antibody molecule that is specific for an epitope on another cell is embedded in the membrane of a red blood cell and then reacted against a cell carrying the epitope that the antibody is specific for.
Pure red cell aplasia (PRCA) or erythroblastopenia refers to a type of aplastic anemia affecting the precursors to red blood cells but usually not to white blood cells. In PRCA, the bone marrow ceases to produce red blood cells. There are multiple etiologies that can cause PRCA.
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