Definition and Function of Red Blood Cells - In the human body, have been no circulatory system, where blood contained in its components, such as white blood cells, red blood cells and blood plasma. Well, this time we will describe a little explanation of the red blood cell and its function.
What Is Red Blood Cells?
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benefits of red blood cell |
Red blood cells also called erythrocytes. Erythrocyte itself comes from the Greek, which means red and kytos erythros which means sheath cells. Red blood cells are the cell type most blood. Shaped like a disc / bikonkaf and has no core.
A diameter of approximately 7.7 units (0.007 mm), can not move. Number approximately 5 million in 1 mm3 (41/2 million). Reddish yellow color, because it contains a substance called hemoglobin, the red color will increase if it contains a lot of oxygen. Section consists of hemoglobin in erythrocytes, a biomolecule that can bind oxygen.
Hemoglobin will take oxygen from the lungs and gills, and oxygen is released when erythrocytes pass through capillaries. Red blood cells red color comes from the element of hemoglobin is iron maker. In humans, red blood cells are made disumsum spine, then forming bikonkaf pieces. In the red blood cells are not the nucleus. Red blood cells will be active for 120 days before being destroyed.
Benefits and Function of Red blood cell
1. Functioning red blood cells circulate throughout the body O2. Red blood cells will bind oxygen from the lungs to be distributed to all body tissues and bind carbon dioxide from the body tissue to be removed through the lungs.
Binding of oxygen and carbon dioxide is carried by hemoglobin that has bound with oxygen is called oxyhemoglobin (Hb + 4 Hb oxygen-oxygen) so the oxygen is transported throughout the body of the oxyhemoglobin that later after arriving in the network will be released: Hb + Hb oxygen-oxygen, and so on.
Hb was going to bound with carbon dioxide and carbon dioxide called hemoglobin (Hb + Hb carbon dioxide-carbon dioxide) in which the carbon dioxide will be released in the lungs.
2. Function in blood grouping.
3. Erythrocytes also play a role in the immune system. When red blood cells undergo lysis by pathogens or bacteria, the hemoglobin in the red blood cells will release free radicals that will destroy the pathogen cell wall and membrane, and killed him.
4. Also releases erythrocyte S-nitrosothiol compounds while deoxygenated hemoglobin, which also serves to dilate the blood vessels and blood flow in order to expedite the blood to the area of the body is starved of oxygen.
That's a little explanation of the meaning and function of red blood cells.
2. Function in blood grouping.
3. Erythrocytes also play a role in the immune system. When red blood cells undergo lysis by pathogens or bacteria, the hemoglobin in the red blood cells will release free radicals that will destroy the pathogen cell wall and membrane, and killed him.
4. Also releases erythrocyte S-nitrosothiol compounds while deoxygenated hemoglobin, which also serves to dilate the blood vessels and blood flow in order to expedite the blood to the area of the body is starved of oxygen.
That's a little explanation of the meaning and function of red blood cells.
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