The heart delivers blood to itself, one half gets "fresh" blood, while the other half gets the blood that comes back after being circulated through the entire body.
coronary bypass
The pulmonary arteries deliver blood to the lungs from the heart so it can be oxygenated.
The coronary artery delivers oxygenated blood to the heart. The coronary arteries supply the heart muscle with oxygen and nutrients.
The right atrium is where the blood enters the heart.
Of course heart muscles need a blood supply for the cellular respiratory process as the blood carries the final electron acceptor oxygen which is key to oxidative phosphorylation in humans.
Blood with no oxygen (the blood that flows to the heart picks up oxygen from the lungs).
The coronary arteries deliver blood to the muscles of the heart.
veins that deliver oxygen poor blood from the body to the heart.
coronary bypass
Capillaries deliver blood tot he muscle of the heart. In fact, it is about 1 capillary per contractile cell of the heart. These cells require a rich blood supply since they are very active cells.
Remember veins back to the heart. This goes into the heart to deliver oxygen.
capillaries
veins move blood to the heart; arteries move blood away from the heart. Blood goes from the heart to the lungs to get oxygen, then back to the heart, then to the body (to deliver the oxygen), then back to the heart, where it starts the process over again.
The pulmonary arteries deliver blood to the lungs from the heart so it can be oxygenated.
diastole
After leaving the heart, the blood travels through the arteries to deliver oxygen and nutrients to the body's tissues. It then returns to the heart through the veins to be pumped to the lungs for oxygenation.
The left side of the heart is responsible for pumping oxygen-rich blood out to the body through the aorta, so that it can deliver oxygen (O2) to the tissues and organs. This side receives oxygenated blood from the lungs and pushes it out to the rest of the body.