The heart is the primary organ that passes blood throughout the body. It acts as a pump, receiving deoxygenated blood from the body and sending it to the lungs to get oxygenated. Then, the heart pumps this oxygenated blood back out to the rest of the body.
The heart has four chambers: the right atrium, right ventricle, left atrium, and left ventricle. Blood enters the heart through the right atrium, passes through the right ventricle, and is pumped to the lungs. After being oxygenated, blood returns to the heart through the left atrium, passes through the left ventricle, and is then pumped throughout the body.
Other organs involved in blood flow:
- Lungs: Oxygenate the blood and remove carbon dioxide.
- Arteries: Carry oxygenated blood away from the heart.
- Veins: Carry deoxygenated blood back to the heart.
- Capillaries: Tiny blood vessels that connect arteries and veins, allowing for the exchange of gases and nutrients between blood and tissues.
The heart is essential for life, and its proper function is crucial for the delivery of oxygen and nutrients to all tissues and the removal of waste products.
