In which region and quadrant can the following organs be found?
a. Stomach - left hypochondriac and epigastric region/left upper quadrant
b. Ascending colon - right lumbar and right iliac region/right lower quadrant
c. Descending colon - left lumbar and left iliac region/left lower quadrant
d. Urinary bladder -hypogastric region/left lower and right lower quadrant
e. Liver - right hypochondriac and epigastric region/right upper quadrant
f. Appendix - right iliac region/right lower quadrant