What is the average number of red blood cells in a healthy adult man?

What is the average number of red blood cells in a healthy adult man?
  1. 5 millions to 5.5 millions mm⁻³ of blood
  2. 6 millions to 6.5 millions mm⁻³ of blood
  3. 4 millions to 4.5 millions mm⁻³ of blood
  4. 7 millions to 7.5 millions mm⁻³ of blood

Solution

A healthy adult man has an average of 5 millions to 5.5 millions of red blood cells per cubic millimeter of blood.

Asked in: NCERT

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