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Heart ( engl. für ‚Herz‘) ist eine US-amerikanische Rockband, die 1973 in Seattle aus der Vorgängerband The Army (später White Heart) hervorging. Bekannt wurde sie 1977 mit dem Lied Barracuda, das seitdem von zahlreichen Bands gecovert wurde.
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11. Juni 2024 · Learn about the structure and function of the human heart, a four-chambered double pump that circulates blood through the body. Explore the history, evolution, and diseases of the heart, and see diagrams and videos.
- 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...
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]
3. Nov. 2023 · The heart is a muscular organ that pumps blood around the body by circulating it through the circulatory/vascular system. It is found in the middle mediastinum, wrapped in a two-layered serous sac called the pericardium.
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26. Jan. 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 ( chambers) that briefly hold blood before moving it.
4. Okt. 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.