Question

Describe the mechanism of blood circulation through the heart with a proper diagrammatic representation​

Answer 1

Answer:  Blood circulation through the heart is classified into two pathways namely the Systemic and Pulmonary pathways.

Explanation:

• The Heart has four chambers, two atria and two ventricles. The atria and ventricles are separated by valves that help prevent the backflow of blood.
• The right atria receive the blood from the body via the inferior and superior vena cava.
• The blood received by the right atria is deoxygenated, which means it is poor in oxygen and contains metabolic waste.
• The right atria pump the blood into the right ventricle. The right ventricle then allows the blood to flow into the lungs via the pulmonary artery.
• The flow of deoxygenated blood from the right ventricle to the lungs is constituting the pulmonary pathway.
• The lungs then supply oxygenated blood or blood rich in oxygen to the left ventricle via the pulmonary vein.    
• The blood then flows from the left ventricle to the aorta from where it is supplied to the rest of the body.
• The flow of oxygenated blood from the left ventricle to the rest of the body constitutes the systemic pathway.