Q.

What is the number of RBCs per cubic millimeter of blood in a man?

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a

 Less than 50000

b

 1 to 3 million

c

Less than 1 million and more than 50000

d

 5 to 5.4 million

answer is B.

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Detailed Solution

Red blood corpuscles (RBCs) also called erythrocytes are one of the three main types of blood cells apart from WBC and platelets. They are the most numerous of all blood cells.

A healthy adult typically possesses 5 to 5.4 million RBCs per cubic millimeter of blood. Their main function is to carry oxygen to different parts of the body.

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