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* Internet Search Results    *** Search Filter: "Heart"    Heart - Wikipedia In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest, called the mediastinum. [4] Heart | Structure, Function, Diagram, Anatomy, & Facts | Britannica 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 pump that is the center of the circulatory system in humans, other mammals, and birds. Heart: Anatomy & Function - Cleveland Clinic Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body. American Heart Association | To be a relentless force for a world of ... 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, donating, heart disease information for healthcare professionals, caregivers, and educators and healthy living. Heart Anatomy, Function, and Blood Circulation - WebMD 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. How the Heart Works - What the Heart Looks Like | NHLBI, NIH This image shows the four chambers of the heart and the direction that blood flows through the heart. Oxygen-poor blood, shown in blue-purple, flows into the heart and is pumped out to the lungs. Heart disease - Symptoms and causes - Mayo Clinic Learn about symptoms, causes and treatment of cardiovascular disease, a term describing a wide range of conditions that can affect the heart. Homepage | Heart Heart keeps cardiologists up to date with important research advances in cardiovascular disease and also provides key educational resources How the Heart Works | Congenital Heart Defects (CHDs) | CDC Blood is carried through the body in blood vessels called arteries and veins. The process of moving blood through the body is called circulation. Together, the heart and vessels make up the cardiovascular system. The heart has four chambers (two atria and two ventricles). Heart Anatomy: Diagram, Blood Flow and Functions - MedicineNet Learn about the heart's anatomy, how it functions, blood flow through the heart and lungs, its location, artery appearance, and how it beats.       * Latest Lyme Disease 101 News        *** News Filter: "Heart"     MASTERS OF THE UNIVERSE is campy fun with lots of heart  Moviejawn Ashley Martin with Zac & Kash Lawson - Wild Hearts Fun Run Event Kerrington's Heart  WKYT Rodeo returns to Ranburne with scholarship mission and family fun at heart  The Anniston Star Fun At The Heart Of Bulldogs’ Success  University of Georgia Athletics Filled with fun, heart, and energy, Bulloch County Recreation Afterschool builds community beyond the school day  Grice Connect Forget Florida, Retire To The Affordable 'Heart Of The Treasure Valley' With Outdoor Fun And A Charming Downtown  islands.com A day of learning and fun for heart health awareness| Moves in Medicine  6abc Philadelphia Camp Lion Heart offers swimming, hiking and 24/7 care for children with congenital heart defects  WGAL “Golden Prom” for the Fun at Heart!  WWLP Thousands of bricks, one big heart: Mesa LEGO convention builds fun and gives back  12News