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  1. Heart
    HeartMuscle organ
    AnatomyFunctionAttackHealthRateTransplantDiseasesFacts
     
  2. All images
    All images
    SystemCirculatory
    ArteryAorta, pulmonary trunk and right and left pulmonary arteries, right coronary artery, left main coronary artery
    Wikipedia
    https://en.wikipedia.org/wiki/Heart

    Heart - Wikipedia

    • The heart is a muscular organ found 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. In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middl… See more

    Structure

    The human heart is situated in the mediastinum, at the level of thoracic vertebrae T5-T8. A double-membraned sac called the pericardium surrounds the heart and attaches to the mediastinum. The back surface of t… See more

    Development

    The heart is the first functional organ to develop and starts to beat and pump blood at about three weeks into embryogenesis. This early start is crucial for subsequent embryonic and prenatal development.
    The heart d… See more

    Physiology

    The heart functions as a pump in the circulatory system to provide a continuous flow of blood throughout the body. This circulation consists of the systemic circulation to and from the body and the pulmonary … See more

    Clinical significance

    Cardiovascular diseases, which include diseases of the heart, are the leading cause of death worldwide. The majority of cardiovascular disease is noncommunicable and related to lifestyle and other f… See more

    History

    Humans have known about the heart since ancient times, although its precise function and anatomy were not clearly understood. From the primarily religious views of earlier societies towards the heart, ancient Greeks are conside… See more

    Society and culture

    As one of the vital organs, the heart was long identified as the center of the entire body, the seat of life, or emotion, or reason, will, intellect, purpose or the mind. The heart is an emblematic symbol in many religions, si… See more

    Other animals

    The size of the heart varies among the different animal groups, with hearts in vertebrates ranging from those of the smallest mice (12 mg) to the blue whale (600 kg). In vertebrates, the heart lies in the middle of th… See more

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  2. Wikipedia
    https://en.wikipedia.org/wiki/Anatomy_of_the_human_heart

    Anatomy of the human heart - Wikipedia

     
  4. Wikipedia
    https://en.wikipedia.org/wiki/Cardiac_physiology

    Cardiac physiology - Wikipedia

  5. Wikipedia
    https://simple.wikipedia.org/wiki/Heart

    Heart - Simple English Wikipedia, the free encyclopedia

  6. Britannica
    https://www.britannica.com/science/heart

    Heart | Structure, Function, Diagram, Anatomy, & Facts

    WEBJul 5, 2024 · 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 …

  7. wikiversity.org
    https://en.wikiversity.org/wiki/Human_heart

    Human heart - Wikiversity

  8. textbookofcardiology.org
    https://www.textbookofcardiology.org/wiki/Anatomy_of_the_Heart

    Anatomy of the Heart - Textbook of Cardiology

  9. Live Science
    https://www.livescience.com/34655-hu…

    Human heart: Anatomy, function & facts | Live Science

    WEBJul 27, 2022 · The human heart is an organ that pumps blood throughout the body via the vessels of the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other...

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  10. wikibooks.org
    https://en.wikibooks.org/wiki/Human_Physiology/The...

    Human Physiology/The cardiovascular system - Wikibooks

  11. Physiopedia
    https://www.physio-pedia.com/Anatom…

    Anatomy of the Human Heart - Physiopedia

    WEBLearn about the structure, function, and blood supply of the human heart, a muscular organ that pumps blood throughout the body. The web page covers the four chambers, four valves, coronary arteries, and nerve …

  12. Biology Dictionary
    https://biologydictionary.net/heart

    Heart (Human Anatomy): Overview, Function & Structure | Biology

  13. Wikipedia
    https://en.wikipedia.org/wiki/Heart_rate

    Heart rate - Wikipedia

  14. Wikipedia
    https://simple.wikipedia.org/wiki/Circulatory_system

    Circulatory system - Simple English Wikipedia, the free encyclopedia

  15. Biology LibreTexts
    https://bio.libretexts.org/Courses/West_Hills...

    17.2: Location, Size, and Shape of the Heart - Biology LibreTexts

  16. Heart Research Institute
    https://www.hri.org.au/health/learn/your-body/the-human-heart

    The human heart • Heart Research Institute

  17. Britannica
    https://www.britannica.com/science/human-cardiovascular-system

    Human cardiovascular system | Description, Anatomy, & Function

  18. National Geographic
    https://www.nationalgeographic.com/science/article/heart-1

    Heart Information, Facts, Photos | National Geographic

  19. Cleveland Clinic
    https://my.clevelandclinic.org/health/body/21704-

    Heart: Anatomy & Function - Cleveland Clinic

  20. BYJU'S
    https://byjus.com/biology/human-heart

    Human Heart - Anatomy, Functions and Facts about Heart - BYJU'S

  21. Wikipedia
    https://en.wikipedia.org/wiki/Heart_development

    Heart development - Wikipedia

  22. MedicineNet
    https://www.medicinenet.com/heart_how_the_heart_works/article.htm

    How the Heart Works: Diagram, Anatomy, Blood Flow, Functions

  23. Wikipedia
    https://en.wikipedia.org/wiki/Heart_valve

    Heart valve - Wikipedia

  24. wikimedia.org
    https://commons.wikimedia.org/wiki/Heart

    Heart - Wikimedia Commons