| Term | Definition |
| RUQ | liver (R lobe) |
| RUQ | Gallbladder |
| RUQ | Stomach (pylorus) |
| RUQ | Duodenum (parts 1-3) |
| RUQ | Pancreas (head) |
| RUQ | R suprarenal gland |
| RUQ | R kidney |
| RUQ | R colic flexure |
| RUQ | Ascending colon (superior part) |
| RUQ | transverse colon (R half) |
| LUQ | Liver (L lobe) |
| LUQ | Spleen |
| LUQ | Stomach |
| LUQ | Jejunum and proximal ileum |
| LUQ | Pancreas (body and tail) |
| LUQ | L suprarenal gland |
| LUQ | L kidney |
| LUQ | L colic flexure |
| LUQ | descending colon (superior part) |
| LUQ | transverse colon (L half) |
| RLQ | Cecum |
| RLQ | Appendix |
| RLQ | Most of the ileum |
| RLQ | Ascending colon (inferior part) |
| RLQ | R ureter (abdominal part) |
| RLQ | R spermatic cord (abdominal part) |
| RLQ | R Uterus (if enlarged) |
| RLQ | R Urinary bladder (if very full) |
| LLQ | Descending colon (inferior part) |
| LLQ | Sigmoid colon |
| LLQ | L ureter (abdominal part) |
| LLQ | L spermatic cord (abdominal part) |
| LLQ | L Uterus (if enlarged) |
| LLQ | L Urinary bladder (if very full) |