Population density shows how cramped or spread out inhabitants are. Cities with high population densities can be considered overpopulated, but the extent to which this is the case depends on factors like quality of housing and infrastructure and access to resources. Source: Wikipedia, 2017.
Livor mortis on the posterior aspects of the body is caused by settling of the blood because of gravity when the body is in a supine position. As the postmortem interval lengthens, Tardieu spots develop in areas of lividity, such as this individual's shoulder area, as decomposing capillaries rupture.
What causes pleural effusion? Dr. Nader describes pleural effusion as fluid that forms around the lung, between the lung and chest wall. He says it usually occurs as a result of active lung cancer. The fluid is typically removed and analyzed to determine its cause. Learn about interventional pulmonology for lung cancer.