The answer is abdominopelvic cavity
Abdomen is divided into four quadrants and nine regions to make diagnosis and examination of a disease easier. Every quadrants/region has a group organ that might be related to the disease. Since liver is normally located in the upper right, it will be less likely to be found on the lower right quadrant/region.
Endocrine and circulatory (C) Endocrine system consists of glands and the hormones they secrete whist the circulatory system is the blood or as I like to call the “transport system” of the body.