Red Blood Cells | Physiology | Biology
Published on 01/26/21 / In Science & Technology / Biology
So I’m sure you know that blood is pretty important right? I mean if you see that someone has lost a lot of blood it’s not usually a good sign! But why? What is so important about blood? Well in the next few videos we will show you just how special this incredible red liquid is!
Your blood is made up of plasma, red blood cells, white blood cells and platelets. In this video we will look at the red blood cells. These are also known as ‘erythrocytes’.
And you have a lot of them, in fact in just one drop of blood there are about 5 million red blood cells. They only live for 120 days in your bloodstream, and every second your body makes 2.5 million new red blood cells to replace old cells.
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