The right atrium is one of the heart's upper chambers that plays a role in blood circulation. It collects deoxygenated blood and directs it on a pathway to get oxygen from the lungs. Problems with ...

The heart is a pump, and the blood goes round ... taking a close look at the four chambers, two sides, and the valves of the heart. BBC Teach has thousands of free, curriculum-linked resources ...

But before you can absorb life-giving oxygen, your circulation must ... heart This short film uses 3D CGI images to show the movement of blood through the chambers of the heart and also the ...

Over time, this buildup can cause the arteries to harden or narrow, disrupting the flow of oxygen-rich blood throughout the body. Poor circulation can lead to various symptoms affecting the ...