Because if it kept all the blood it would be A little counterproductive.
arteries send blood to the rest of the body, from the heart; viens send it back to the heart from the body.
to the rest of the body
Your body picks up oxygen in your lungs. Your right ventricle pumps blood through your pulmonary artery to your lungs. Your blood picks up oxygen in your lungs. From there, it needs to get to the rest of your body. How can it do that? Something has to send it there. Let's send it through a vein to the heart. Maybe we can get the heart to send the oxygenated blood to the rest of the body. The pulmonary vein brings oxygenated blood from the lungs back to the heart. Then the heart takes that blood and pumps it through arteries to the rest of the body. After the oxygen leaves the blood it returns by way of veins. Under what conditions would a vein contain oxygenated blood?
every body part you have sends blood to your heart
Your arteries send blood away from the heart and around your body.
It is on the left.
The left ventricle is the part of the heart that pumps oxygenated blood to the different body parts. It receives oxygen-rich blood from the lungs and then contracts to send this blood out to the rest of the body through the aorta.
To the organs and extremities of the body
left part of heart
arteries are blood vessels that are part of the system carrying blood under pressure from the heart to the rest of the body-OR-Arteries are blood vessels that carry oxygenated blood out to the body/lungs. They are the largest form of vessel. In other words Arteries are blood vessels that carry rich blood away from the heart throughout the body. Arteries send rich blood away throughout the cells.
The heart pumps oxygenated blood to the body through the arteries. These blood vessels branch out into smaller vessels called arterioles and then capillaries, where oxygen and nutrients are exchanged with tissues. Deoxygenated blood returns to the heart through the veins to be reoxygenated.
to the heart, lungs