Pulmonary Artery, Pulmonary Artery

Pulmonary Artery, Pulmonary Artery: Structure, Functions and Role in Blood Circulation

The Pulmonary Artery, Pulmonary Artery, is the largest artery of the pulmonary circulation, which is an important element of the anatomy and physiology of the human body. This artery is responsible for transporting blood from the right ventricle of the heart to the lungs to enrich it with oxygen. The pulmonary artery is the only artery that carries deoxygenated (oxygen-poor) blood (venous blood).

Structure of the Pulmonary Artery:

The pulmonary artery leaves the right ventricle of the heart and rises up in front of the aorta, about 5 cm, after which, under the aortic arch, it divides into the right and left pulmonary arteries. Each of the pulmonary arteries goes to one of the lungs. Inside the lungs, each pulmonary artery, in turn, is divided into lobar, segmental, etc. according to the division of the bronchi, which end in capillaries in the interalveolar passages



The pulmonary artery and pulmonary trunk are the two main arteries of the pulmonary circulation and are the only arteries that carry deoxygenated blood from the heart to the lungs.

The pulmonary artery starts from the right ventricle and rises up, in front of the aorta, to a distance of about 5 centimeters. It then divides into the right and left arteries, which go to each of the lungs separately. Inside the lungs, each artery divides into smaller branches corresponding to the division of the bronchi into lobes, segments, etc., which ultimately reach the capillaries in the interalveolar septum.

The main function of the pulmonary artery is to transport oxygenated blood from the heart to the lungs. In the lungs, blood passes through capillaries, where it receives oxygen and carbon dioxide is released into the air. The oxygenated blood then returns to the heart through the pulmonary artery.

The pulmonary trunk is the part of the pulmonary artery that emerges from the aorta. It plays an important role in regulating pressure in the lungs and conserving oxygen. The pulmonary trunk is also involved in the formation of the pulmonary circulation, which ensures blood circulation between the lungs and the heart.

Thus, the pulmonary artery and pulmonary trunk are key components of the pulmonary circulation. They play an important role in maintaining normal lung function and providing enough oxygen to the body.



The Pulmonary Artery, also known as the Trunk Pulmonary, is the main artery of the pulmonary circulation. It plays an important role in transporting blood from the heart to the lungs to enrich them with oxygen. Interestingly, the pulmonary artery is the only artery that carries deoxygenated (oxygen-poor) blood, also known as venous blood.

The pulmonary artery arises from the right ventricle of the heart and goes in front of the aorta. It ascends approximately 5 cm and then divides under the aortic arch into the right and left pulmonary arteries. These pulmonary arteries are directed to the corresponding lung organs.

Inside each lung organ, the pulmonary artery continues its branching. It is divided into lobar, segmental and other small branches corresponding to the division of the bronchial tree. These branches end in capillaries in the interalveolar septa of the lungs. Such a complex branched structure ensures effective gas exchange between air and blood.

The pulmonary artery is an integral part of the pulmonary circulation, which ensures the transfer of blood between the heart and lungs. In this circuit, blood from the right ventricle of the heart enters the pulmonary artery, where it is oxygenated in the lungs, and then returns back to the left atrium through the pulmonary veins.

Understanding the structure and function of the Pulmonary Artery is important for the diagnosis and treatment of various diseases associated with the lungs and heart. For example, a blockage or narrowing of the Pulmonary Artery can be serious and require medical attention.

In conclusion, the Pulmonary Artery, or Trunk Pulmonary, is the main artery of the pulmonary circulation. It transports deoxygenated blood from the heart to the lungs to enrich it with oxygen. The complex branched structure of the Pulmonary Artery ensures effective gas exchange in the lungs. Understanding this artery is important to the field of medicine and helps in the diagnosis and treatment of diseases associated with it.