What are the working of heart?
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The heart is a muscular organ that pumps blood continuously throughout the body. It is comprised of four chambers — the right and left atrium and the right and left ventricle. The four chambers of the heart work together by alternately contracting and relaxing to pump blood throughout the heart.
The heart is a muscular organ that pumps blood throughout the body, supplying oxygen and nutrients to tissues and removing carbon dioxide and other wastes. Here’s a brief overview of its workings:
1. **Blood Flow**: Deoxygenated blood from the body enters the right atrium through the superior and inferior vena cavae.
2. **Right Atrium and Ventricle**: The right atrium contracts, pushing blood through the tricuspid valve into the right ventricle. The right ventricle then contracts, pumping blood through the pulmonary valve into the pulmonary artery.
3. **Lungs**: In the lungs, blood picks up oxygen and releases carbon dioxide. Oxygenated blood returns to the heart via the pulmonary veins into the left atrium.
4. **Left Atrium and Ventricle**: The left atrium contracts, pushing blood through the mitral valve into the left ventricle. The left ventricle contracts, pumping blood through the aortic valve into the aorta.
5. **Systemic Circulation**: The aorta distributes oxygen-rich blood to all parts of the body. This process repeats, with the heart’s rhythmic contractions controlled by electrical impulses to maintain circulation.
This continuous cycle of pumping and circulation is essential for sustaining life by delivering oxygen and nutrients to cells and removing waste products.