− | *The '''Pulmonary Arteries''' follow the bronchi while the '''Pulmonary veins''' sometimes run separately.
| + | The '''pulmonary arteries''' follow the bronchi, while the '''pulmonary veins''' sometimes run separately. '''Bronchial arteries''' from the aorta supply the bronchi, and '''bronchial veins''' may drain this blood to the [[Heart Structure - Anatomy & Physiology#Right Atrium|right atrium]] via the '''azygous vein'''. More often the blood from the bronchi drains directly to the [[Heart Structure - Anatomy & Physiology#Left Atrium|left atrium]]. |