Heart - Wikipedia
[8] The heart pumps blood with a rhythm determined by a group of pacemaker cells in the sinoatrial node. These generate an electric current that causes the heart to contract, traveling …
Heart | Structure, Function, Diagram, Anatomy, & Facts ...
Sep 14, 2025 · Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double …
Heart: Anatomy & Function - Cleveland Clinic
Jan 26, 2024 · Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body.
Heart disease - Symptoms and causes - Mayo Clinic
Aug 13, 2024 · Symptoms Heart disease symptoms depend on the type of heart disease. Symptoms of heart disease in the blood vessels Coronary artery disease is a common heart …
Heart Anatomy, Function, and Blood Circulation - WebMD
Aug 22, 2024 · Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.
American Heart Association | To be a relentless force for a ...
4 days ago · Learn more about the American Heart Association's efforts to reduce death caused by heart disease and stroke. Also learn about cardiovascular conditions, ECC and CPR, …
Heart Anatomy: Diagram, Blood Flow and Functions - MedicineNet
Jan 8, 2025 · Learn about the heart's anatomy, how it functions, blood flow through the heart and lungs, its location, artery appearance, and how it beats.