How many regions is the abdomen divided into?

The abdomen is divided into nine regions, which is a standard method used in anatomy to facilitate the study and discussion of abdominal and pelvic organs. This nine-region division includes three rows of regions: the upper row contains the right hypochondriac, epigastric, and left hypochondriac regions; the middle row includes the right lumbar, umbilical, and left lumbar regions; and the lower row is made up of the right iliac, hypogastric, and left iliac regions.

This division helps healthcare providers and professionals effectively identify and communicate about specific areas of the abdomen for diagnosis and treatment, making it a crucial aspect of understanding human anatomy. Each region contains specific organs, and knowing which region corresponds to which organs is essential for clinical practice.