Ever wonder why a red blood cell is shaped like a life saver well this is why. The unique shape of a blood cell is very important. A red blood cell has what is known as a biconcave shape. Both sides of the cells surface curve inward like the interior of a sphere.
The red blood cell is shaped like a life saver so it can fit through tiny blood vessels too deliver oxygen to the organs. Also it is so full of hemoglobin to carry oxygen that doesn’t have a nucleus. Sometimes they are misshaped and cause Sickle Cell Anemia. When you have Sickle cell anemia your blood stream gets clogged.