Physiology Which of the following defines hematocrit:March 2013 A Number of erythrocytes in blood B Percentage of the blood, by volume, occupied by erythrocytes C Ratio of erythrocytes to leucocytes D Ratio of erythrocytes to all blood cells 💡 Explanation Which of the following defines hematocrit:March 2013 ✓ Correct Answer: B. Percentage of the blood, by volume, occupied by erythrocytes