1. The three flapped tricuspid valve is located between the right atrium and the right ventricle and prevents backflow and mixing of blood.
2. Mitrial valve is placed between left atrium and left ventricle. Its function is to prevent mixing of blood.
3. Its function is to bring deoxygenated blood to the right atrium.
4. Pulmonary veins are responsible for carrying oxygenated blood from the lungs to the heart it is an exception to veins which always carry deoxygenated blood.
5. The inferior vena cava returns the deoxygenated blood from the parts below the diaphragm to the heart.
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