LUQ, left upper quadrant
Contains the liver (left lobe), stomach, spleen, part of the pancreas, parts of the small and large intestines.
RUQ, right upper quadrant
Contains the liver (right lobe), gallbladder, part of the pancreas, parts of the small and large intestine
RLQ, right lower quadrant
Contains parts of the small and large intestines, right ovary, right fallopian tube, appendix, right ureter
LLQ, left lower quadrant
Contains part of the small and large intestine, left ovary, left fallopian tube, left ureter