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  1. my.clevelandclinic.org › health › bodyHeart: Anatomy & Function - Cleveland Clinic

    Jan 26, 2024 · What is the heart? The heart is a fist-sized organ that pumps blood throughout your body. It’s your circulatory system’s main organ. Muscle and tissue make up this powerhouse organ. Your heart contains four muscular sections that briefly hold blood before moving it. Electrical impulses make your heart beat, moving blood through these chambers.

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    • cardiac muscle | Definition, Function, & Structure | Britannica
    • Heart Anatomy · Anatomy and Physiology
    • Muscle Tissue Types | Learn Muscular Anatomy
    • Images Of Internal Structure Of Heart | MedicineBTG.com

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  3. biologydictionary.net › heartHeart (Human Anatomy): Overview, Function & Structure | Biology

    Oct 4, 2019 · The heart is a muscular organ that pumps blood throughout the body. It is located in the middle cavity of the chest, between the lungs. In most people, the heart is located on the left side of the chest, beneath the breastbone. The heart is composed of smooth muscle. It has four chambers which contract in a specific order, allowing the human ...

  4. www.healthline.com › health › is-the-heart-a-muscleIs the Heart a Muscle or an Organ? - Healthline

    Apr 16, 2019 · The heart is a muscular organ made up mostly of cardiac muscle, which is specific to the heart. The function of the heart is to pump blood to the rest of the body, so it's very important to keep ...

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  6. en.wikipedia.org › wiki › HeartHeart - Wikipedia

    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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  7. www.medicalnewstoday.com › articles › 320565The heart: Anatomy, how it works, and more - Medical News Today

    Sep 30, 2020 · 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.

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  9. www.verywellhealth.com › anatomy-of-the-heart-5097180The Anatomy of the Heart - Verywell Health

    Nov 12, 2023 · The heart—the primary organ of the cardiovascular system—is a muscle that contracts regularly, via a natural pacemaker that produces electrical impulses.The heartbeat drives the transport of blood throughout the body, which provides oxygen and nutrients to all the body’s cells, tissues, and organs.

  10. www.healthline.com › human-body-maps › heartHeart Pictures, Diagram & Anatomy | Body Maps - Healthline

    Mar 10, 2015 · The heart is a mostly hollow, muscular organ composed of cardiac muscles and connective tissue that acts as a pump to distribute blood throughout the body’s tissues. Healthline Health Conditions

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