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