ANAT20006 Lecture Notes - Lecture 23: Thoracic Cavity, Serous Fluid, Serous Membrane

• School: University of Melbourne
• Department: Anatomy and Neuroscience
• Course: ANAT20006
• Professor: Junhua Xiao

Document Summary

There are 3 main sections of the thoracic cavity. Pleura is a continuous single layered serous membrane which covers the surface of the lung and the walls of the thoracic cavity. It can be divided into 2 types: This creates a pleural cavity between them. In healthy conditions (not stabbed) there is no air in the pleural cavity so it is only a potential space with some serous fluid in it decreases friction during breathing. The structure connecting a lung to the mediastinum is called lungroot (in bright blue below) Parietal pleura (lung walls) can be divided further depending on what section of the lungs it covers. Extends beyond the apex of the lungs and just into the neck. Covers the lateral wall of the mediastinum. Covers just the top section of the diaphragm. Pulmonary ligament is also associated with pleura. The pleural sleeve is a cut off section of pleura sitting at the right lung root.