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I'm confused because I thought arteries were AWAY from the heart and the veins are towards the heart, meaning they supply the heart while the arteries take things away from the heart and to the rest of the body. But reading over the notes in class and the powerpoints online..... it clearly states that the Coronary arteries supply oxygenated blood to the heart and the veins take away deoxygenated blood.
The pump on the left hand side receives oxygen-rich blood and then pumps it out into the arteries to deliver its oxygen around the body. Blood in need of oxygen enters heart. Blood in need of oxygen from around the body travels in the veins to the heart. This blood in need of oxygen (also called deoxygenated blood) is usually shown as blue or purple on diagrams. This âdeoxygenatedâ blood enters the top right hand side chamber (shown on left in diagram) of the heart, which is called the right atrium, via two large veins. Blood from the upper body, e.g. the head and arms, comes in via the superior vena cava.