Differences between RBC and WBC

Differences between RBC and WBC

Differences between RBC and WBC

Differences between RBCs and WBCs

Here are the major differences:

S.N. Characteristics Red Blood Cells (RBCs) White Blood Cells (WBCs)
1. Alternative Name Erythrocytes Leucocytes
2. Origin In the embryonic phase, they are formed in the liver and spleen. However, after birth, they are formed in red bone marrow. They are formed in red bone marrow,  lymph nodes, spleen, etc
3. Process of Formation Formation of RBCs is called “Erythropoiesis” Formation of WBCs is called “Leucopoiesis”
4. Abundance More abundant (4-5 million /mm3) They are the most abundant cell in the blood, accounting for about 40 to 45 percent of its volume. They are much fewer in number than red blood cells, accounting for about 1 percent of blood (8000 /mm3).
5. Size Smaller than WBC ( 0.008 mm diameter ) Larger than RBC (0.02mm)
6. Shape Biconcave disc shaped Irregular or round in shape
7. Colour Red cells are pinkish‐brown in colour. White cells are colourless.
8. Hemoglobin The complex protein, haemoglobin, is the major constituent of RBCs. Haemoglobin is absent in WBCs.
9. Nucleus Nucleus is absent (anucleate). Present and may be bilobed, irregular or round.
10. Circulatory system Belong to cardiovascular system Beong to lymphatic system
11. Types Single type. In healthy people there are at least five types of white cells in the circulating blood. White cells are divided into granulocytes, monocytes and lymphocytes.
12. Number Increament Number increases during exercise or when at high altitudes. Infection leads to increase in number of WBCs.
13. Life span Average life span of 120 days Life span ranges from 5-21 days.
14. Motility Non-motile but can move through circulation and have the ability to squeeze through small capillaries. Generally motile.
15. Movement Movement is Primarily between the cardiovascular system Between the cardiovascular and lymphatic system.
16. Movement type Do not leave blood vessel They can leave blood from capillaries and land in tissues.
17. Rouleaux formation Forms stacks or aggregation called Rouleaux Do not form Rouleaux
18. Related disorders Disorders result in anemia, thalassemia, polycythemia vera etc. Lymphoma, Leukemia, Myelodysplastic syndrome (MDS)
19. Function Carry respiratory gases- oxygen and carbondioxide. Also, contribute in blood viscosity. Phagocytosis and defensive role including antibody production.

References

  1. https://www.livestrong.com/article/106131-white-blood-cells-functions/
  2. https://www.diffen.com/difference/RBC_vs_WBC
  3. https://theydiffer.com/difference-between-red-and-white-blood-cells/
  4. http://simplebiologyy.blogspot.com/2015/04/table-comparison-between-red-blood-cells-erythrocytes-white-blood-cells-leucocytes-platelets-thrombocytes.html
  5. http://www.hematology.org/Patients/Basics/

Differences between RBC and WBC

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