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  • Heart - Wikipedia
    The heart is a muscular organ found in humans and other animals This organ pumps blood through the blood vessels 1 The heart and blood vessels together make the circulatory system 2 The pumped blood carries oxygen and nutrients to the tissue, while carrying metabolic waste such as carbon dioxide to the lungs [3]
  • 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
  • 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
  • Most U. S. adults have hearts older than their actual age
    Most U S adults have a “heart age” several years older than their chronological age — sometimes by more than a decade And that gap is wider among men and among those with lower incomes or education or who identify as Black or Hispanic, according to a new study led by Northwestern Medicine
  • The heart: Anatomy, how it works, and more - Medical News Today
    The human heart is a finely-tuned instrument that serves the whole body It is a muscular organ around the size of a closed fist, and it sits in the chest, slightly to the left of center The
  • 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
  • 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)




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