With every heartbeat, the heart pump blood all through our bodies, conveying oxygen to each cell. In the wake of delivering the oxygen, the blood comes back to the heart. The heart at that point sends the blood to the lungs to get more oxygen. This cycle rehashes again and again.
The circulatory system is comprised of blood vessels that divert blood from and toward the heart.
There are two sorts of blood vessels that convey blood all through our bodies:
- Arteries convey oxygenated (blood that has gotten oxygen from the lungs) from the heart to through out of the body.
- Blood after than heads out through veins back to the heart and lungs, so it can get more oxygen to send back to the body by means of the arteries.
As the heart pulsates, you can feel blood going through the body at beat focuses — like the neck and the wrist — where huge, blood-filled arteries run near the surface of the skin.