Nine abdominopelvic regions & organsOnline version organs in each region by Jacqueline Hurt 1 spleen 2 Liver 3 Gallbladder 4 Diaphragm 5 transverse colon of large intestine 6 descending colon of large intestine 7 Initial part of sigmoid colon 8 urinary bladder 9 Appendix 10 Cecum 11 Small intestine 12 Ascending colon of large intestine