The abdomen has three layers – skin, superficial fascia and muscle. The abdomen houses important organs in the body. It is an essential area of study for doctors when they are assessing pain and illness in patients. The body of the abdomen when viewed from a frontal view is divided into nine imaginary planes, in both vertical and horizontal directions.
The nine regions of the abdomen can help determine specific ailments and are of clinical importance. This article will explain the 9 regions of abdomen, the organs in them as well as the 4 quadrants of abdomen.
9 Regions of Abdomen
Three horizontal lines and two vertical lines create nine regions of the abdomen. Below is an image of the regions of the abdomen, which are formed within these planes. “Hypo” refers to “below”, “epi” refers to “above”, “chond” refers to the cartilage of the rib and “gast” is in reference to the stomach.
9 Regions of Abdomen
The above lines intersect and divide the abdomen into 9 regions:
Epigastric region (epigastrium)
Left hypochondrium (LHC)
Right hypochondrium (RHC)
Umbilical region
Left lumbar region
Right lumbar region
Hypogastric region
Right iliac fossa (RIF)
Left iliac fossa (LIF)
Watch a video for more detailed explanation:
Organs in 9 Regions of Abdomen
Location of various organs in the Abdomen according to the region
Abdomen Regions
Organs
Right Hypochondrium
Liver, Gallbladder, Right Kidney, Small Intestine
Left Hypochondrium
Spleen, Colon, Left Kidney, Pancreas
Epigastrium
Stomach, Liver, Pancreas, Duodenum, Spleen, Adrenal Glands
Right Lumber Region
Gallbladder, Liver, Right Colon
Left Lumber Region
Descending Colon, Left Kidney
Umbilical Region
Umbilicus, Jejunum, Ileum, Duodenum
Right Iliac Fossa
Appendix, Cecum
Left Iliac Fossa
Descending Colon, Sigmoid Colon
Hypogastrium
Urinary Bladder, Sigmoid Colon, Female Reproductive Organs
Below is a reference video, which explains the differential diagnosis of abdominal pain according to the abdominal