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Heart | Structure, Function, Diagram, Anatomy, & Facts
WebNov 29, 2023 · 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. Learn more about the heart in this article.
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Heart - Wikipedia
WebThe heart is a muscular organ in most animals. This organ pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.
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Heart: Anatomy and Function - Cleveland Clinic
WebAug 26, 2021 · Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body. It also works with other body systems to control your heart rate and blood pressure. Your family history, personal health history and lifestyle all affect how well your heart works.
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How the Heart Works - The Heart | NHLBI, NIH
WebMar 24, 2022 · Your heart is at the center of your circulatory system. This system is a network of blood vessels, such as arteries, veins, and capillaries, that carries blood to and from all areas of your body. Your blood carries the oxygen and nutrients that your organs need to work properly.
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Heart disease - Symptoms and causes - Mayo Clinic
WebAug 25, 2022 · Mayo Clinic Overview Heart disease describes a range of conditions that affect the heart. Heart diseases include: Blood vessel disease, such as coronary artery disease Irregular heartbeats (arrhythmias) Heart problems you're born with (congenital heart defects) Disease of the heart muscle Heart valve disease
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Heart 101 | National Geographic - YouTube
WebFeb 21, 2019 · National Geographic. 51K Likes. 2019 Feb 21. The human heart beats up to 3 billion times over an average lifespan. Learn about the anatomy of the heart and how this muscular organ provides life...
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The Anatomy of the Heart, Its Structures, and Functions
WebApr 5, 2020 · The heart is situated within the chest cavity and surrounded by a fluid-filled sac called the pericardium. This amazing muscle produces electrical impulses that cause the heart to contract, pumping blood throughout the body. The heart and the circulatory system together form the cardiovascular system.
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How the Heart Works - What the Heart Looks Like | NHLBI, NIH
WebMar 24, 2022 · Your heart is in the center of your chest, near your lungs. It has four hollow chambers surrounded by muscle and other heart tissue. The chambers are separated by heart valves, which make sure that the blood keeps flowing in the right direction. Read more about heart valves and how they help blood flow through the heart.
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The Anatomy of the Heart - Verywell Health
WebNov 12, 2023 · The heart is an organ that weighs approximately 350 grams (less than one pound). It’s nearly the size of an adult’s clenched fist. It's located in the thorax (chest)—between the lungs —and extends downward between the second and fifth intercostal (between the ribs).
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Meet the heart! (video) | Khan Academy
WebAbout Transcript The heart, nestled between the lungs and protected by the rib cage, serves as a powerful pump ensuring blood flow throughout the body. This systemic flow delivers oxygen and nutrients to cells and removes waste.
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