Arterial Trunk True

The arterial trunk is the main component of the vascular system of the human body and is one of the main elements of blood circulation. Its true name is truncus arteriosus because it connects to the main truncus arteriosus that runs through the heart into the lung. The true truncus arteriosus is a vessel connecting the main truncus arteriosus and the pulmonary arteries, which then branch into smaller vessels. The main task of the true truncus arteriosus is to transport blood from the heart to the lungs and back.

Arterial circulation is a process occurring in the body's capillary system that distributes oxygen and nutrients throughout the body. The major arteries serve as a highway for blood flow to the rest of the body. Their main function is to transport blood and ensure the functioning of all organs and systems. Microscopically, arteries are divided into layers of wall structure, such as outer, middle and inner layers, located one above the other. The outer layer is made of fibrous tissue, the inner layer contains muscle fibers that provide strength and flexibility to move blood through the body. Between the layers is spongy vascular connective tissue, which allows blood to move and pass through the walls of the arteries without obstruction. The inner layer also contains endothelial cells, which provide smoothness to the walls and protection from damage.

The vital activity of the arterial system is regulated by the cardiovascular system. The heart does the job of pumping blood through the vessels. The systemic circulation begins its functioning in the lungs, where gas exchange occurs through thin bronchi leading to small arterioles. There, the oxygen in the air is converted into a gaseous form, which is supplied to the entire body through capillaries. At the end of gas exchange, the blood is released back into the veins and the cycle is completed. As the oxygenated blood passes through cellular structures, it carries oxygen eventually into the arteries and is finally blocked in the main bloodstream. From this position, large arteries are the main “regulators” of blood circulation, as they control the rate of mixing of blood in the heart. If the speed of blood movement is high, the blood supply to the cardiovascular system increases, but if it is insufficient, then there is a lack of oxygen. The opposite effect is also observed in the case of excessively rapid blood movement through the arteries. Arterial pressure controls the normal functioning of the cardiovascular system.

Arterial trunks are the largest arteries. They are of great importance in the body. It is mistakenly called true.

Arterial vessels should be distinguished by the degree of branching extending from the aorta: - true arteries - they are distinguished by the greatest thickness and continuity; - visceral (visceral artery is a type of true artery); - arterialization.

Aorta as a true arterial