What is the correct path of blood in heart?
The correct path of blood in the heart is:
1. Superior vena cava: Deoxygenated blood from the upper body enters the heart through the superior vena cava.
2. Right atrium: The blood from the superior vena cava flows into the right atrium, one of the four chambers of the heart.
3. Tricuspid valve: From the right atrium, the blood passes through the tricuspid valve into the right ventricle.
4. Right ventricle: The right ventricle contracts, pumping the deoxygenated blood into the pulmonary artery.
5. Pulmonary artery: The pulmonary artery carries the deoxygenated blood to the lungs, where it will be oxygenated.
6. Lungs: In the lungs, the blood picks up oxygen and releases carbon dioxide through the process of gas exchange.
7. Pulmonary veins: Oxygenated blood from the lungs returns to the heart through the pulmonary veins.
8. Left atrium: The blood from the pulmonary veins flows into the left atrium.
9. Mitral/Bicuspid valve: The blood passes through the mitral/bicuspid valve from the left atrium into the left ventricle.
10. Left ventricle: The left ventricle contracts, pumping the oxygenated blood into the aorta.
11. Aorta: The aorta carries the oxygenated blood to all parts of the body, delivering oxygen and nutrients to the tissues.
This completes one full cycle of blood circulation, known as the systemic circulation. The deoxygenated blood that enters the heart from the body is pumped to the lungs, where it is oxygenated and returned to the heart. This oxygenated blood is then pumped to the rest of the body, providing oxygen and nutrients to all tissues and organs.