it follows a complicated pathway. If you were in the bloodstream, you would follow the steps below one by one. Oxygen-poor blood (shown in blue) flows from the body into the right atrium.

For the first time, we found that better blood flow makes the hippocampus area stiffer,” stated Mehmet Kurt, University of ...

It opens due to a build-up of pressure in the right atrium, and prevents back flow of blood from the right ventricle to the right atrium. The bicuspid valve separates the left atrium and left ...

it follows a complicated pathway. If you were in the bloodstream, you would follow the steps below one by one. Oxygen-poor blood (shown in blue) flows from the body into the right atrium.