+Red Blood Cells, or erythrocytes, are the body's tiny couriers, tirelessly delivering [Oxygen](/wiki/oxygen) from lungs to tissues. Their distinctive biconcave disc shape and rich [Hemoglobin](/wiki/hemoglobin) content are crucial for this vital transport, making them essential components of [Blood](/wiki/blood).
+## See also
+- [White Blood Cell](/wiki/white_blood_cell)
+- [Plasma](/wiki/plasma)
+- [Circulatory System](/wiki/circulatory_system)
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