Bronchial artery

Bronchial Artery

Bronchial arteries shown in red. Image from Gray's Anatomy.

The Bronchial Artery is a part of the human circulatory system that supplies oxygenated blood to the bronchi and bronchioles of the lung. These arteries are usually two in number on the left and one on the right.

Anatomy

The bronchial arteries originate from the thoracic aorta or one of its branches. The right bronchial artery often arises from the third posterior intercostal artery, while the left bronchial arteries usually arise directly from the thoracic aorta. They follow the bronchi through the lungs, branching and diminishing in size in the same manner.

Function

The bronchial arteries provide oxygenated blood to the lungs, aiding in the vital process of respiration. They also nourish the trachea, esophagus, and lymph nodes within the mediastinum.

Clinical Significance

Understanding the anatomy and function of the bronchial arteries is crucial in the diagnosis and treatment of various lung conditions, such as bronchiectasis, pulmonary hypertension, and hemoptysis.

See Also

• Pulmonary artery
• Pulmonary circulation
• Bronchus

References

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