What Is a Bronchial Artery?

The bronchial artery is the nutritional blood vessel of the lung stent tissue. It supplies bronchial tubes at various levels above the respiratory bronchus, and coincides with the capillaries of the pulmonary artery. The origin and number of the bronchial artery vary widely. According to Chinese statistics: 97.8% of the left bronchial artery originates directly from the thoracic aorta or the aortic arch, most of which originate from the anterior wall of the thoracic aorta at the 4th to 6th thoracic vertebra, and a few from the right forearm, right wall, or left anterior wall of the thoracic aorta. , Or the concave side of the inferior wall of the aortic arch.

Bronchial artery

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The bronchial artery is the nutritional blood vessel of the lung stent tissue. It supplies bronchial tubes at various levels above the respiratory bronchus, and coincides with the capillaries of the pulmonary artery. The origin and number of the bronchial artery vary widely. According to Chinese statistics: 97.8% of the left bronchial artery originates directly from the thoracic aorta or the aortic arch, most of which originate from the anterior wall of the thoracic aorta at the 4th to 6th thoracic vertebra, and a few from the right forearm, right wall, or left anterior wall of the thoracic aorta. , Or the concave side of the inferior wall of the aortic arch.

It originates from the thoracic aorta, is attached to the bronchial wall, and is distributed with the bronchial branches. It nourishes the bronchial wall, pulmonary blood vessel wall, and visceral pleura in the lungs.

The bronchial arteries are relatively small, and the number and starting position are not constant. Generally, there are two left and right branches, most of which are issued from the initial segment of the thoracic aorta and enter the lungs with the bronchus. The right bronchial artery is at the level of the ridge, and the left bronchial artery is at the proximal end of the left main bronchus.