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The human heart beats up to 3 billion times over an average lifespan. Learn about the anatomy of the heart and how this muscular organ provides life-giving o...
- 3 min
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- National Geographic
11 juin 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. In fishes the heart is a folded tube, with three or four enlarged areas that correspond ...
1 avr. 2010 · REMASTERED IN HD!Official Music Video for Alone performed by Heart.Follow HeartInstagram: https://www.instagram.com/heartofficialTwitter: https://twitter.com...
- 4 min
- 368,9M
- HeartVEVO
3 nov. 2023 · Heart anatomy. The heart has five surfaces: base (posterior), diaphragmatic (inferior), sternocostal (anterior), and left and right pulmonary surfaces. It also has several margins: right, left, superior, and inferior: The right margin is the small section of the right atrium that extends between the superior and inferior vena cava .
- 10 min
3 mai 2024 · The normal resting heart rate varies by age. In adults, any number between 60 and 100 beats per minute (bpm) is considered a good resting heart rate. Babies and young children have higher resting heart rates than older kids, teens, and adults. Resting heart rate is your heart rate while at rest.
30 sept. 2020 · The heart beats around 100,000 times a day, pumping approximately 8 pints of blood throughout the body 24/7.This delivers oxygen- and nutrient-rich blood to tissues and organs and carries away waste.
3 mars 2024 · A healthy heart rate for adults over 18 is usually between 60 and 100 beats per minute (bpm). Your number may vary. The best time to measure your resting heart rate is just after you wake up in ...
