What is the two tasks heart performs?

The heart performs two main tasks in our body:

1. PUMPING BLOOD:

- Oxygenated Blood to the Body (Systemic Circulation): The right atrium receives deoxygenated blood from the body, and the right ventricle pumps this blood to the lungs, where it picks up oxygen. This oxygen-rich blood returns to the heart, enters the left atrium, and then the left ventricle pumps it out to all the organs and tissues of the body. This oxygen-rich blood delivers essential oxygen and nutrients to cells and removes carbon dioxide and other waste products.

- Deoxygenated Blood to the Lungs (Pulmonary Circulation): The heart has a separate circulation system for the lungs, called the pulmonary circulation. Deoxygenated blood from the body enters the right atrium, passes to the right ventricle, which then pumps it to the lungs. In the lungs, the blood releases carbon dioxide and picks up oxygen. This freshly oxygenated blood returns to the heart, entering the left atrium and then the left ventricle, completing the pulmonary circulation.

2. REGULATING BLOOD PRESSURE:

- The heart plays a crucial role in maintaining appropriate blood pressure levels in the body. Blood pressure is the force exerted by blood against the walls of blood vessels. The pumping action of the heart creates pressure that helps move the blood through the circulatory system. The heart helps regulate blood pressure by adjusting the force and rate of its contractions. When blood pressure is too low or too high, the heart can adjust its pumping to bring it back to normal.