| A | B |
| RUQ | right upper quadrant |
| LUQ | left upper quadrant |
| RLQ | right lower quadrant |
| LLQ | lower left quadrant |
| umbilical region | centermost region, deep too and surrounding the navel, small intestines |
| epigastric region | superior to the umbilical region, stomach |
| hypogastric region | pubic region, inferior to the umbilical region, urinary bladder |
| right iliac | inguinal region, superior part of the hip bone cecum & appendix |
| left iliac | inguinal region, superior part of the hip bone , sigmoid colon |
| right lumbar region | ascending colon of lrg. intestine |
| left lumbar region | descending colon of large intestine |
| right hypochondriac region | flank the epigastric region, contains lower ribs |
| left hypochondriac region | flanks the epigastric region, diaphram |
| nine abdominicpelvic regions | system used by anatomists |
| quadrants | system used by medical personnel |