How does the red blood cell travel around body?

The red blood cell travels around the body through the bloodstream. Blood is pumped by the heart through arteries and veins, which are blood vessels that carry blood away from and back to the heart, respectively. Arteries carry oxygenated blood away from the heart to all parts of the body, while veins carry deoxygenated blood back to the heart. Capillaries, which are tiny blood vessels, allow for the exchange of oxygen and carbon dioxide between the blood and the body's tissues. Red blood cells, which are flexible and able to change shape, can easily pass through capillaries to deliver oxygen to and remove carbon dioxide from cells in the body. This process, known as circulation, ensures that all cells in the body receive the oxygen they need to function properly and that waste products, such as carbon dioxide, are removed from the body.