The pleura (plural: pleurae) is a two-layered membrane that covers the lung. Between the layers is a small amount of lubricating fluid, known as pleural fluid, which helps cushion the lung and reduce ...

The central tendon is a large part of the diaphragm that anchors the diaphragm to the ribs. A healthy person can have some minor variations in the diaphragm's anatomy. For example, the left or right ...