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Vor 3 Tagen · 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]
16. Mai 2024 · Learn about the structure, function, and diagram of the human heart, a four-chambered organ that pumps blood through the body. Explore the history, evolution, and diseases of the heart, and how it works with the circulatory system.
- The Editors of Encyclopaedia Britannica
- In humans, the heart is situated between the two lungs and slightly to the left of center, behind the breastbone. It rests on the diaphragm, the mu...
- The heart consists of several layers of a tough muscular wall, the myocardium. A thin layer of tissue, the pericardium, covers the outside, and ano...
- The pumping of the heart, or the heartbeat, is caused by alternating contractions and relaxations of the myocardium. These contractions are stimula...
- The rhythmic noises accompanying the heartbeat are called heart sounds. The two distinct sounds are heard, a low, slightly prolonged “lub” (first s...
Vor 5 Tagen · 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. [1] [2] It includes the cardiovascular system , or vascular system , that consists of the heart and blood vessels (from Greek kardia meaning heart , and from ...
14. Mai 2024 · 4. 19 views 22 hours ago. The heart is a muscular organ that is situated in the front of the chest. It pumps blood all through the body in a process called circulation. Apart from the heart, the...
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- Abu,s biology
22. Mai 2024 · Welcome to The Fact Vault #humanheart Discover the incredible power and complexity of the human heart in this fascinating YouTube Shorts video! ️ Learn how...
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- The Fact Vault
20. Mai 2024 · The development of the heart begins with the formation of the primitive heart tube following embryonic folding. In this article we shall consider the embryonic development of the heart as well as some important clinical conditions associated with failure of this process.
Vor 3 Tagen · The human body is the physical substance of the human organism. Characteristic of the vertebrate form, the human body has an internal skeleton with a backbone, and, as with the mammalian form, it has hair and mammary glands. Learn more about the composition, form, and physical adaptations of the human body.
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