Objavio elektromatematicar032 25. maj 2022.
The heart is the motor organ of the bloodstream, located in the central part of the chest between the two lungs. It receives blood from the veins and pushes it into the arteries. The heart is a hollow muscle that acts as a double pump: the right atrium pushes blood into the right and the left atrium into the left ventricle. The right ventricle pushes blood into the lungs (small bloodstream) and the left ventricle into all other parts of the body (large bloodstream). We distinguish the right heart, which receives reduced blood from the whole body, which it then squeezes into the lungs, where it is oxidized (enriched with oxygen), and then through the system of pulmonary veins it affects the left heart, from where it is squeezed into the large bloodstream.
The heart is a muscle pump that, with its rhythmic contractions, enables a constant flow of blood through all tissues, ensuring a normal metabolism. There are mechanisms that serve to maintain the heart rhythm and provide adjustment of the heart rhythm to the current needs of the organism.
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