red blood cell


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red blood cell

n. Abbr. RBC
A cell in the blood of vertebrates that transports oxygen and carbon dioxide to and from the tissues. In mammals, the red blood cell is disk-shaped and biconcave, contains hemoglobin, and lacks a nucleus. Also called erythrocyte, red cell, red corpuscle.

red blood cell

n
(Biochemistry) another name for erythrocyte

red′ blood′ cell`


n.
any of the cells of the blood that in mammals are enucleate disks concave on both sides, contain hemoglobin, and carry oxygen to the cells and tissues and carbon dioxide back to the respiratory organs. Also called erythrocyte, red′ blood′ cor`puscle. Abbr.: RBC
[1905–10]

red blood cell

(rĕd)
Any of the disc-shaped cells that circulate in the blood of vertebrate animals, contain hemoglobin, and give blood its red color. The hemoglobin binds to oxygen, which is then transported by the cells to all of the tissues of the body. The red blood cells of mammals have no nucleus. Red blood cells are formed in the bone marrow. Also called erythrocyte. See more at cell.
Did You Know? Blood contains many cell types, but the distinctive red color comes from the aptly named red blood cells (RBCs). RBCs have their rich red color because of a vitally important iron-containing protein called hemoglobin. The protein picks up oxygen molecules as the blood exchanges gases in the lungs. The RBCs then carry oxygen to the far reaches of the body, where it is released for use by other cells, such as those of the brain and muscles. Just as importantly, after the RBC drops off its load of oxygen, its hemoglobin picks up carbon dioxide, the waste product of those brain and muscle cells, and brings it back to the lungs to be breathed out. All animals have some oxygen distribution system, but only vertebrate animals use RBCs. In some invertebrate animals, such as the earthworm, oxygen is transported using hemoglobin that is freely dissolved in the blood. Other invertebrates don't use hemoglobin at all. The horseshoe crab, for instance, uses copper instead of iron, making its blood blue instead of red.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.red blood cell - a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissuesred blood cell - a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus
blood cell, blood corpuscle, corpuscle - either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets
macrocyte, megalocyte - abnormally large red blood cell (associated with pernicious anemia)
megaloblast - abnormally large red blood cell present in pernicious anemia and folic acid deficiency
acanthocyte - an abnormal red blood cell that has thorny projections of protoplasm
microcyte - an abnormally small red blood cell (less than 5 microns in diameter)
reticulocyte - an immature red blood cell containing a network of filaments or granules
sickle cell - an abnormal red blood cell that has a crescent shape and an abnormal form of hemoglobin
siderocyte - an abnormal red blood cell containing granules of iron not bound in hemoglobin
spherocyte - an abnormal spherical red blood cell
target cell - an abnormal red blood cell with the appearance of a dark ring surrounding a dark center; associated with anemia
haemoglobin, Hb, hemoglobin - a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues; "fish have simpler hemoglobin than mammals"
References in periodicals archive ?
This would disable one of the key proteins that the parasite uses to escape red blood cells and infect more people.
The development of such antibodies can cause red blood cell destruction if red blood cells with the corresponding antigens are later transfused.
Deviations from the regular biconcave shape of a red blood cell are a significant indicator of blood-related diseases, whether they result from genetic abnormalities, from infectious agents, or simply from a chemical imbalance.
Section II discusses the specifics of grading individual red blood cell abnormalities and defines a grading system described in words and images for anisocytosis, poikilocytosis, microcytosis, macrocytosis, hypochromia, polychromasia, blister cells, target cells, teardrop cells, schistocytes, sickle cells, spherocytes, acanthocytes, echinocytes, elliptocytes, stomatocytes, Howell-Jolly bodies, basophilic stippling, Pappenheimer bodies, rouleaux, and agglutination.
If narrowed blood vessels are in the brain, patients face a high chance of strokes and must be treated with regular transfusions of red blood cells to reduce the chances of a stroke.
Exercise also conserves the body's salt and water causing an increase in plasma volume that dilutes the red blood cell concentration.
We are pleased with the results of this study, which provide support to advance the INTERCEPT red blood cell program into late-stage clinical studies in pursuit of European product approval," said Dr.
London, March 18 ( ANI ): Researchers at Albert Einstein College of Medicine of Yeshiva University and the Icahn School of Medicine at Mount Sinai have found that macrophages - white blood cells that play a key role in the immune response - also help to both produce and eliminate the body's red blood cells (RBCs).
Anemia is typically measured in terms of blood concentration of hemoglobin, the red blood cell molecule that binds to oxygen in the lungs and releases it where it's needed.
1) The Sylsens system has been successfully tested on all of the standard protocols for pathogen elimination, red blood cell function and toxicity.
A Phase 3 clinical trial of the Intercept Plasma System and Phase 1 clinical trials of the Intercept Red Blood Cell System are also underway in the United States.
But the researchers face one big challenge: Every hemoglobin molecule in the human body is enclosed by a protective membrane or covering of the red blood cell.