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The heart is coordinated by a specialized group of cells called the cardiac conduction system. This system consists of several structures that work together to generate and conduct electrical impulses throughout the heart, which coordinate the contraction of its muscle cells.
17 sie 2023 · The cardiac conduction system is a network of specialized cardiac muscle cells that initiate and transmit the electrical impulses responsible for the coordinated contractions of each cardiac cycle.
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30 paź 2023 · The cardiac cycle is defined as a sequence of alternating contraction and relaxation of the atria and ventricles in order to pump blood throughout the body. It starts at the beginning of one heartbeat and ends at the beginning of another.
5 wrz 2024 · The ventricle contracts and the blood is pushed through the semilunar valve into the pulmonary artery. The blood travels to the lungs and moves through the capillaries past the alveoli where gas exchange takes place. Low pressure blood flow on this side of the heart prevents damage to the capillaries in the lungs.
6 paź 2020 · The cellular composition of the heart is highly heterogeneous, plastic and sex-specific according to two papers published in Nature and Cardiovascular Research. These findings have important...
12 lut 2017 · The cardiac cycle is the series of contractions in the heart that pressurize different chambers, causing blood to flood in one direction. There are two stages during the cardiac cycle. During diastole, the ventricles relax and fill with blood. The muscles contract during systole, pushing blood through the arteries. Cardiac Cycle Explained.
