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  1. Vor 6 Tagen · 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.

    • Heart Valve

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    • Coronary Heart Disease

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    • Chambers

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    • Heart Sounds

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    • Pericardium

      In cardiovascular disease: Rheumatic heart disease …lining),...

  2. 3. Mai 2024 · The circulatory system, also known as the cardiovascular system, is a simple loop which starts, and ends, with your heart. It is a closed system, meaning blood does not enter or leave the system during its journey from your heart to your body and back again.

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

    Vor 2 Tagen · 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.

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  4. Vor 17 Stunden · Read more about the heart symptoms that mean you need urgent help. 3. Arm, jaw or back pain. If you're having a heart attack, pain may also spread to other parts of your body. This includes your arm, jaw, neck or back. It's more likely to be a heart attack if the pain is going down your arm, especially your left arm or into your neck.

  5. Vor einem Tag · Circulatory system. The circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human or other vertebrate.

  6. 13. Mai 2024 · Your heart rate, or pulse, is the number of times your heart beats per minute. Normal heart rate varies from person to person. Knowing yours can be an important heart-health gauge. As you age, changes in the rate and regularity of your pulse can change and may signify a heart condition or other condition that needs to be addressed.

  7. Vor 6 Tagen · The heart plays a hidden role in our mental health. The organ sends messages to the brain. How those signals influence it is still unclear. Messages that the heart sends to the brain could hold...