"pulmonary artery" 的定义和意义

What is "pulmonary artery"?

The pulmonary artery is a vital blood vessel in the human body that carries deoxygenated blood from the right ventricle of the heart to the lungs. There are two pulmonary arteries in the human body, one pulmonary artery arises from the right ventricle of the heart and carries deoxygenated blood to the right lung, while the other pulmonary artery arises from the same location and carries deoxygenated blood to the left lung. They play a crucial role in pulmonary circulation, where they deliver blood to the lungs for oxygenation and removal of carbon dioxide. The pulmonary artery branches into smaller vessels within the lungs, facilitating the exchange of gases between the blood and the lung tissues. This oxygenation process is essential for maintaining proper oxygen levels in the body and supporting overall respiratory function.