What Are Capillaries?
Reviewed: Dr. Gromatzky
1. Capillaries
Oxygen and nutrient-laden blood needs to be transported around the entire body so that every living cell is supplied with what it needs. To help achieve this, the blood vessels of the body are in a way structured very much like the branches of a tree or river system.
That is that there are larger, wider vessels that gradually become smaller as they carry less blood. Capillaries are the smallest of all these branches. They are very important because not only do they help with transportation of the blood, they also help with the transfer of nutrients and oxygen.
