ERYTHROCYTES AND HAEMOGLOBIN (HB)

This is formed in the myeloid tissues or more commonly known as red bone marrow, although when the body is under severe conditions the yellow bone marrow which is also the fatty places of trhe marrow  in the body will also make Red Blood Cells (RBCs). The production cell is called erythropoiesis. RBCs loses nuclei upon maruration and take on biconcave, dimpled shape. They are about 7-8 um in diameter ha having a liter which contains 5x10 12 of RBS
(Cheesbrough, 2000).

The production of the red blood cells is in the bone marrow, this is possible whenever there is tissue hypoxia (clack of oxygen) leading to the release of the hormones known as erythropoietin which stimulates progenior cells BFU-E and CFU-E to develop into pronormoblasts proerythroblasts). This process takes about 3-5 days (Chessbrough; 2000). A the globin is the protein which is about 250 million/cell. the globin is the protein substances of four different protein: polypeptide globin chains that contain 141-146 amito acids and is also responsible for the cell’s moiety of haemoglobin to which the iron is bound (Boh; 2001).

This is the iron carrying capacity  of the red blood cell; also it can be said to be the oxygen-transport of metallo-protein in the red blood cells of all verterbrates (Maton et al; 1993). Haemoglobin helps in the carrying of blood oxygen from the et al; 1981). This increases the total blood oxygen capacity seventy-fold compared to dissolved oxygen in the blood. It is measured to  detect anaemia and its severity which aids to monitor an anaemic patient’s response to treatment (Cheesbrough; 200). The haemoglobin is a group of globular protein subunit and is composed of a protein chain tightly associated with a non-protein heme group.
Normal ranges:
5.0-120 x 109/L Red Blood Cells.
130-180g/dl haemolobin (Cheesbrough, 2000). 

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