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 region, right inguinal region | right upper quadrant
c. Descending colon - left lumbar region, left inguinal region | left upper quadrant
d. Urinary bladder - hypogastric region | left lower quadrant
e. Liver - epigastric region, right hypochondriac region | right upper quadrant and left upper quadrant
f. Appendix - right inguinal region | right lower quadrant