Vessels passing diaphragm
aroTa and Thoracic duct passes at the level of the Twelfth thoracic vetebrae
Oesophagus passes at the 10 th throacic vetebrae
and the IVF passes at the 8th.
Pleural effusion
Definition Pleural effusion is a collection of fluid in the pleural space between the visceral pleura surounding the lungs and the parietal pleural attatched to the throacic wall. Demographics Pleural effusions are relatively common, but it is a manifestation of other underlying diseases. The prevalence and incidence of pleural effusions is therefore dependent on it's cause. Pathophysiology/causes Pleural fluid is usually filtered from the parietal pleura into the pleural space, due to hydrostatic pressure from the capillaries, negative pressure in the pleural space and pleural oncotic pressure. The visceral pleura is perfused by the pulmonary system which has a lower pressure, and fluid in the pleural space is therefore drawn back in through the visceral pleura due to the higher oncotic pressure in plasma. Some of this fluid is then drained by the lymphatic system.
Hey C bear!! Just thought I'd add some fun facts to your wonderful site ;)
ReplyDeleteThe Aorta passes behind the diaphragm and does not pierce it like the esophagus and vena cava do. Also the vagus nerve passes through the oesophageal hiatus!