Lungs: blood supply,lymphatic drainage and nerve supply |
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| Institution: | 1. Dept. of Molecular and Developmental Medicine, University of Siena, via A.Moro 2, 53100 Siena, Italy;2. Dept. of Medicine, Surgery and Neuroscience, University of Siena, viale Bracci 16, 53100 Siena, Italy;3. ILD Unit Royal Brompton Hpospital,Sydney Street SW3 6LR, London, UK;1. Division of Pulmonary Medicine, Department of Medicine, Tokai University School of Medicine, Kanagawa, Japan;2. Clinical Laboratory Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan;3. Department of Respiratory Medicine, Saitama Cardiovascular and Respiratory Center, Saitama, Japan;4. Department of Respiratory Medicine, National Hospital Organization Tokyo National Hospital, Tokyo, Japan;5. Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan;6. Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, Akita, Japan;7. Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan;8. Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan;9. Division of Clinical Research, Medical Mycology Research Center, Chiba University, Chiba, Japan;10. Division of Respirology, Department of Internal Medicine, Toho University Ohashi Medical Center, Tokyo, Japan;11. Department of Allergy, Clinical Research Center, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan;1. Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand;2. Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand;3. St. George''s International School of Medicine Keith B. Taylor Global Scholars Program, Northumbria University, Newcastle‐upon‐Tyne, United Kingdom;4. Department of Anatomical Sciences, St. George’s University, School of Medicine, Grenada, West Indies;5. Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand;6. Department of Traumatology and Hand Surgery, University Hospital Münster, Albert-Schweitzer-Campus, Münster, Germany;1. Department of Anatomy, the Cardiovascular Research Institute, and the Comprehensive Cancer Center, University of California, San Francisco, California;2. Departments of Surgery, Biochemistry, and Molecular Biology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California;3. Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville, Florida |
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| Abstract: | The pulmonary arteries, through their capillary plexus, are entirely concerned with alveolar gaseous exchange, while the nutrient supply of the lung parenchyma is provided by the bronchial arteries. The pulmonary vein tributaries derive partly from the capillaries of the bronchial and the pulmonary arteries. The bronchial veins drain the larger bronchi. The lymphatics of the lungs drain into the nodes lying at the bifurcations of the larger bronchi, then to the tracheobronchial nodes and then into the bronchomediastinal lymph trunk on each side. These usually drain directly into the junction of the internal jugular and subclavian veins on each side, but may drain, on the right, into the right lymph trunk and, on the left, into the thoracic duct. If the subcarinal node is the site of secondary deposits it gives the typical bronchoscopic sign of widening of the carina. The principal function of the sympathetic (T2-4) supply to the lung is bronchodilatation, while the vagus fibres act as stretch receptors. |
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