1 Describe the normal pleural anatomy and physiologic features. The pleural space is a potential space that contains 2 to 10 mL of pleural fluid between the visceral and parietal pleural layers that essentially represents interstitial fluid from the parietal pleura…
1 Describe the anatomy of the mediastinum. The mediastinum is located centrally within the thorax between the pleural cavities laterally, the sternum anteriorly, the spine posteriorly, the thoracic inlet superiorly, and the diaphragm inferiorly. It is usually divided into anterior,…
1 What radiographic features distinguish interstitial diseases from airspace diseases? Two primary characteristics radiographically distinguish interstitial diseases from airspace diseases. First, interstitial diseases displace little of the air within the lung, whereas airspace diseases displace large amounts of air. Interstitial…
1 What is the difference between a pulmonary acinus and a secondary pulmonary lobule? The acinus (Latin for “berry”) is a structural unit of the lung distal to a terminal bronchiole, supplied by first-order respiratory bronchioles, which contains alveolar ducts…