The most numerous cells in the blood are the:

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Multiple Choice

The most numerous cells in the blood are the:

Explanation:
Red blood cells, or erythrocytes, are the most numerous cells in circulating blood. In a healthy adult, there are about 4.5–5.5 million erythrocytes per microliter, vastly outnumbering white blood cells (thousands per microliter) and platelets (hundreds of thousands per microliter). Plasma isn’t a cell, so it doesn’t count among the cellular components. The large number of erythrocytes reflects their essential role in carrying oxygen to tissues and carbon dioxide back to the lungs, with their biconcave shape maximizing surface area for gas exchange and hemoglobin load.

Red blood cells, or erythrocytes, are the most numerous cells in circulating blood. In a healthy adult, there are about 4.5–5.5 million erythrocytes per microliter, vastly outnumbering white blood cells (thousands per microliter) and platelets (hundreds of thousands per microliter). Plasma isn’t a cell, so it doesn’t count among the cellular components. The large number of erythrocytes reflects their essential role in carrying oxygen to tissues and carbon dioxide back to the lungs, with their biconcave shape maximizing surface area for gas exchange and hemoglobin load.

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