| Term | Definition |
| Umbilical Region | The centermost region deep to and surrounding the umbilicus (navel). |
| Epigastric Region | Located superior to the umbilical region (epi= upon, above; gastri= belly). |
| Hypogastric (Pubic) Region | Located inferior to the umbilical region (hypo= below). |
| Right Iliac (Inguinal) Region | Located lateral to the hypogastric region (iliac= superior part of the hip bone). |
| Left Iliac (Inguinal) Region | Located lateral to the hypogastric region (iliac= superior part of the hip bone). |
| Right Lumbar Region | Lie lateral to the umbilical region (lumbus= loin). |
| Left Lumbar Region | Lie lateral to the umbilical region (lumbus= loin). |
| Right Hypochondriac Region | Flank the epigastric region laterally (chondro= cartilage). |
| Left Hypochondriac Region | Flank the epigastric region laterally (chondro= cartilage). |
| RUQ | Right upper quadrant. |
| LUQ | Left upper quadrant. |
| RLQ | Right lower quadrant. |
| LLQ | Left lower quadrant. |