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.
Inguinal hernias are caused by a hole in the muscle of the groin. This hole can either be lateral to the blood vessels (indirect inguinal hernia), or towards the middle from the blood vessels (direct inguinal hernia). Regardless, in open surgery, the muscle layers over the weakened muscle are opened.