compare the normal count's and Life span of Rbcs and wbcs
Answers
Answer:
Difference between Red Blood Cells and White Blood Cells
The significant difference between red blood cells and white blood cells is as follows:
RBC – Red Blood Cells WBC – White Blood Cells
Red blood cells are called Erythrocytes. White Blood Cells are called Leucocytes or Leukocytes.
RBCs have a bi-concave disc shape WBCs have an irregular shape.
Size varies from 6 – 8 µm in diameter. Size varies from 12 – 17 µm in diameter.
The lifespan of RBC is about 120 days. The lifespan of WBC is around 12-20 days after which, they are destroyed in the lymphatic system
Red blood cells do not have a nucleus on maturity. WBCs are characterized by the presence of a large central nucleus.
Due to the presence of haemoglobin, these cells appear red in colour. These cells are colourless, as they do not have any pigment.
Only one type of RBC exists. Different types of WBCs are found in the blood such as neutrophils, B lymphocytes, T lymphocytes, monocytes, basophils, eosinophils.
They help in the transport of respiratory gases to different parts of the human body They help in producing antibodies to fight against disease-causing microbes.
RBCs are produced in the red bone marrow These cells are produced in the red bone marrow, lymph nodes, and spleen.
The components of red blood cells are haemoglobin. The components of white blood cells are antibodies with the presence of MHC (major histocompatibility complex) antigen cell markers.
These cells make up around 36-50% of human blood. They make up around 1% of the human blood.
RBC count: 5 million/ mm³ of blood. WBC count: 7000–8000/mm³ of blood.
The process of formation of RBC is known as erythropoiesis. The process of formation of WBC is known as leukopoiesis.
These cells move between the cardiovascular systems. These cells move between the cardiovascular and lymphatic systems.
Low count of RBCs results in Anaemia. Low count of WBCs results in Leukopenia.
Explanation:
Red Blood Cells
The Red blood cells are also called erythrocytes. RBCs store the haemoglobin, which is a respiratory pigment that binds to oxygen or carbon dioxide molecules. This helps in the transportation of the oxygen to different tissues and organs of the human body. It also takes away the carbon-dioxide from different organs and tissues to be replenished in the lungs.
Haemoglobin is mainly composed of iron, which combines with the oxygen, thus giving a reddish colour to the blood. It occupies 40-45% of the total volume of blood. The primary function of the RBCs is the transportation of nutrients and hormones throughout the human body.
Lifespan of RBC
The lifespan of RBC is 100-120 days. When their lifespan is completed, they are eliminated through the circulatory system. When a person suffers from chronic diseases, the lifespan of RBCs is reduced.
White Blood cells
The white blood cells are also called Leukocytes. These cells act as a defence system against any infections in the human body. They produce special kinds of proteins called antibodies, which identify and fight pathogens invading the human body. These cells are classified further as granulocytes and agranulocytes.
The white blood cells contain visible granule-like structures in the cell bodies, hence their names Granulocytes. On the other hand, agranulocytes do not possess these granule-like structures. The three kinds of granulocytes are neutrophils, basophils, and eosinophils. The two types of agranulocytes are lymphocytes and monocytes.
WBCs comprise 1% of the total blood volume. They are colourless because they are devoid of haemoglobin.
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