How does blood reach literally every cell in the body? There can’t be capillaries between every single cell when capillaries are also made of cells…. can there?

Question

How does this work?

In: 4868

Answer 1

Blood does need to get to every cell. However molecules that blood carry do. The oxygen is released from the blood cells when the cells get into tissue capillaries. The oxygen can diffuse across the cells that line the capillary and deliver it to cells beyond the blood vessels