Which type of blood cell is the most numerous in the human body?

• A. Platelets (thrombocytes)
• B. Erythrocytes (red blood cells)
• C. Neutrophils
• D. Lymphocytes

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the types of blood cells mentioned: Platelets (thrombocytes) are cell fragments involved in clotting; Erythrocytes (red blood cells) carry oxygen; Neutrophils and Lymphocytes are types of white blood cells involved in immune response.
2. Step 2: Recall the relative abundance of these cells in human blood. Erythrocytes are known to be the most numerous, vastly outnumbering white blood cells and platelets.
3. Step 3: Consider typical counts per microliter of blood: Erythrocytes are usually around 4-6 million, platelets about 150,000-450,000, and white blood cells (including neutrophils and lymphocytes) about 4,000-11,000.
4. Step 4: Compare these values to identify which cell type is most numerous. The cell type with the highest count per volume of blood is the most numerous.
5. Step 5: Conclude that erythrocytes (red blood cells) are the most numerous blood cells in the human body based on their significantly higher count compared to platelets and white blood cells.