If two parallel lines are now drawn perpendicular upward from the center of Poupart's ligament, each of these zones is subdivided into three parts. The middle region of the upper zone is called the epigastric; and the two lateral regions, the right and left hypochondriac. The central region of the middle zone is called the umbilical; and the two lateral regions, the right and left lumbar regions. The middle region of the lower zone is called the hypogastric; and the two lateral regions are called the right and the left inguinal regions. The viscera contained in each of these are as follows: Right Hypochondriac | Epigastric Region | Left Hypochondriac | | The greater part of | The greater part of | The fundus of the the right lobe of the | the stomach including | stomach, the spleen, liver, the hepatic | both cardiac and | the extremity of the flexure of the colon | pyloric orifices, the | pancreas, the splenic and part of the right | left lobe and part of | flexure of the colon kidney. | the right lobe of the | and part of the left | liver and the gall- | kidney and small | bladder, the | portion of the left | pancreas, the | lobe of the liver. | duodenum, the | | suprarenal capsules | | and parts of the | | kidneys. | ——————————————————————+———————————————————————+—————————————————————— Right Lumbar | Umbilical Region | Left Lumbar | | Ascending colon, part | The transverse colon, | Descending colon, of the right kidney | part of the great | part of the omentum, and some convolutions | omentum and | part of the left of the small | mesentery, transverse | kidney and some intestines. | part of the duodenum | convolutions of the | and some convolutions | small intestines. | of the jejunum and | | ileum and part of | | both kidneys. | ——————————————————————+———————————————————————+—————————————————————— Right Inguinal or | Hypogastric Region | Left Inguinal or Iliac | | Iliac | Convolutions of the | The caecum and | small intestines, the | Sigmoid flexure of vermiform appendix | bladder in children | the colon and a and a portion of the | and in adults if | portion of the ascending colon. | distended, and the | descending colon. | uterus during | | pregnancy. |