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The heart is a muscular organ found in most animals. This organ pumps blood through the blood vessels of the circulatory system. [1] . The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs. [2] .
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16. Mai 2024 · heart, organ that serves as a pump to circulate the blood. It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one or more receiving chambers (atria) and a main pumping chamber (ventricle), as in mollusks.
3. Nov. 2023 · The heart is a muscular organ that pumps blood around the body by circulating it through the circulatory/vascular system. It is found in the middle mediastinum, wrapped in a two-layered serous sac called the pericardium.
14. Mai 2024 · Heart: Ann and Nancy Wilson on 2024 Tour, 50 Years of the Band. Sisterly Love. How Ann and Nancy Wilson Put the Pieces of Heart Back Together. They’ve overcome everything from music-biz sexism...
Vor 3 Tagen · Get tips to stress less. The AHA Turns 100. For 100 years, the American Heart Association, along with our volunteers, supporters and collaborating organizations, has worked to build longer, healthier lives. And there’s no letting up in the next 100 years as we remain devoted to a future of health and hope for everyone, everywhere.
heart / ˈ hɑɚt/ noun. plural hearts. Britannica Dictionary definition of HEART. 1. [count] : the organ in your chest that pumps blood through your veins and arteries. I could feel my heart pounding/racing. He has a bad/weak heart. — often used before another noun. He suffers from a heart condition.
