3 Questions
What is the approximate ratio of erythrocytes to leukocytes in the blood?
1000:1
Which type of leukocyte is the most abundant in the blood?
Neutrophils
What is the normal range of thrombocytes (platelets) in the blood?
150-450 x 109/L
Study Notes
Blood Composition
- The approximate ratio of erythrocytes (red blood cells) to leukocytes (white blood cells) in the blood is 600:1 to 1000:1.
- The most abundant type of leukocyte in the blood is neutrophils, accounting for approximately 50-70% of total leukocytes.
- The normal range of thrombocytes (platelets) in the blood is 150,000-450,000 per microliter (μL) of blood.
Test your knowledge on the different types of blood cells with our Histology of Blood Formed Elements quiz. Explore the varying percentages and functions of erythrocytes, leukocytes (including granulocytes and agranulocytes), lymphocytes, monocytes, basophils, eosinophils, and thrombocytes. See how well you understand the composition of blood and the roles each cell plays in maintaining our health.
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