what do the blue and red colors represent as seen on blood vessel images

what do the blue and red colors represent as seen on blood vessel images. There are some references to what do the blue and red colors represent as seen on blood vessel images in this article. If you are looking for what do the blue and red colors represent as seen on blood vessel images you've came to the right place. We have posts about what do the blue and red colors represent as seen on blood vessel images. You can check it out below.