Body parts of the circulatory SYSTEMS: the heart helps function the blood. The blood go's from the heart to the body sells. The heart is a muscular orgen about the size of your fist when it is closed that functions as the body's circulatory pump. It takes in deoxygenated blood though the veins and delivers it to the lungs for deoxygenated before pumping it in to the various arteries.
The heart helps your body. If the heart was not working you will have to go to a hospital and you can die. Don't smoke it might stop your heart from beating.
If we don't have blood going to the orgens in the body dose not work. The blood vains protects the blood.
The arteries: The arteries Partor the circulatory system which deliveres oxygen and blood to the body parts. It needs to get oxygen and nutrients from the top to the bottom of your body and it manaages nutrients to sells. The arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissue of blood.
The vein: the vains are important of our circulatory system they are responsible to the body. The arteries are perceived as carrying oxygen blood to the tissues. Veins are blood vessels that carry blood toward the heart.