| Abstract: |
The lungs have two functionally distinctive circulatory pathways, provided by: The pulmonary vessels which convey deoxygenated blood to the alveolar walls and drain oxygenated blood back to the left side of the heart. The much smaller bronchial vessels, which are derived from the systemic circulation and provide oxygenated blood to lung tissues which do not have close access to atmospheric oxygen, for example .
|
|
|