Question

Definition of spherical red blood cells of humans

Answer 1

Red blood cell, also called erythrocyte, cellular component of blood, millions of which in the circulation of vertebrates give the blood its characteristic colour and carry oxygen from the lungs to the tissues. The mature human red blood cell is small, round, and biconcave.

Answer 2

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Red blood cells are the most abundant cell type in the blood. The primary function of red blood cells is to transport oxygen to body cells and deliver carbon dioxide to the lungs. Both sides of the cell's surface curve inward like the interior of a sphere. This shape aids in a red blood cell's ability to maneuver through tiny blood vessels to deliver oxygen to organs and tissues. Red blood cells are also important in determining human blood type.

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