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

Interstitial fluid. This is the fluid that surrounds your cells. Nutrients diffuse across thin capillary walls into the interstitial fluid. Nutrients then diffuse or are transported by membrane proteins into the cells. Capillaries do branch out nearly every where in the body. Not every cell is directly next to a capillary but one is usually never very far away.