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How does blood flow through the body, step by step? Your heart pumps oxygen-rich blood through your aortic valve and into your aorta. Your aorta is your body’s main artery, and it has many branches that go in different directions to reach various areas of your body.
The left atrium sends the oxygenated blood into the left ventricle. This muscular part of your heart pumps blood out to your body through arteries. As blood moves through your body and organs, it drops off nutrients, transfers hormones and hauls away waste products.
Blood travels through your heart in the following steps (the steps on the left and right are happening at the same time): As electricity moves through your heart, it causes each part it passes through to contract.
The great vessels of the heart are major blood vessels that connect directly to your heart. These arteries and veins circulate blood between your heart and lungs , and between your heart and the rest of your body.
Explore how veins and arteries work with the heart to pump blood through the circulatory system. Cleveland Clinic experts explain how.
Your coronary arteries carry blood to your heart. They supply your heart muscles with the oxygen and nutrients they need to pump blood through your body. Coronary artery disease (CAD) occurs if these arteries clog and don’t deliver enough blood to your heart.
Your heart contains four valves that open and close to control the flow of blood through it. The valves can become damaged by age, infection or other chronic conditions, and some people are born with heart valve defects.
What are the steps of the heart conduction pathway? Your heart is a pump that sends blood through your body. For each heartbeat, electrical signals travel through the conduction pathway of your heart. It starts when your sinoatrial (SA) node creates an excitation signal.
Your heart pumps blood through three types of blood vessels: Arteries carry oxygen-rich blood from your heart to your body’s tissues. The exception is your pulmonary arteries, which go to your lungs.
The renal arteries carry a large volume of blood from the heart to the kidneys. The kidneys filter waste and excess fluid from the blood. You have two renal arteries. The right renal artery supplies blood to the right kidney, while the left artery sends blood to the left kidney.