The lungs are used for breathing (ventilation) and ensures oxygen uptake and carbon dioxide release.
You can find an overview of all Dr-Gumpert images at: medical illustrations
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You can find an overview of all Dr-Gumpert images at: medical illustrations
In the lung a distinction is made two types of vascular supply (Vascular supply to the lungs). Once the deoxygenated blood from the heart reaches the lungs via the Pulmonary arteries (Pulmonary arteries). These vessels are called public vessels (Vasa publica), as they do not supply the lungs with oxygen, but rather the blood is only enriched with oxygen in the lungs. The pulmonary arteries run together with the Bronchi and the arterial bronchial branches directly in the individual lung segments (intrasegmental course) (Vascular supply to the lungs).
$config[ads_text2] not foundThe oxygen-rich blood leaves the lungs again via the Pulmonary veins (Pulmonary veins) to the heart. The pulmonary veins run separately from the rest of the vessels between the individual lung segments (intersegmental course).
The actual oxygen supply to the lungs occurs through Bronchial branches (Rami Bronchiales). These arise directly from the main artery (aorta) and are, because they only supply the lungs with oxygen, as private vessels (Vasa Privata) designated. It is important to know that the lungs cannot supply themselves with the oxygen they breathe in, but that it is supplied with oxygen via the bronchial branches. This is due to the fact that the vascular walls in most areas of the lungs are too thick and therefore the oxygen contained in the breath cannot pass (diffuse) directly into the lungs. Only in the Pulmonary alveoli the oxygen diffuses into the smallest pulmonary capillaries, which then combine to form larger vessels and flow to the heart as pulmonary veins (Vascular supply to the lungs).