You're probably talking about sickle-cell disease. The abnormal crescent-shaped cells can cause blockages in capillaries, which leads to pain and tissue damage. It also confers resistance to malaria.
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Hemoglobin
Hemoglobin
hemogoblin
* Cell color (blood cells): (generally refers to the staining characteristics which reflects the hemoglobin concentration. Terms that describe hemoglobin content end with "chromic".) ~ normochromic (sufficient or normal amounts of hemoglobin) ~ hyperchromic (containing an unusually high concentration of hemoglobin in its cytoplasm) ~ hypochromic (containing an abnormally low concentration of hemoglobin)
Sickle cell disease is a mutation in the gene that codes for hemoglobin, which causes the hemoglobin and the cell to become elongated and look like a sickle rather than its normal disc shape.
Red blood cells (also called erythrocytes)
There are the double-concave discs without nucleus, containing hemoglobin transfering an oxygen for tissues.
Not containing enough Red blood cells. From African and Indian decent. Sickle cell disease is a defective hemoglobin.
There are the double-concave discs without nucleus, containing hemoglobin transfering an oxygen for tissues.
hemoglobin
there is an inability for Oxygen to properly bond to the Hemoglobin molecules in the damaged cell
Hb means hemoglobin in the medical context.High BloodpressureMost often Hb stand for hemoglobin, which is a measure of the iron containing part of the red blood cell that carries oxygen.In cardiology it can also stand for heart block.