Abdominopelvic Regions in Anatomy & Physiology
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The nine regions are Right hypochondriac, Epigastric, Left hypochondriac, Right lateral (lumbar), Umbilical, Left lateral (lumbar), Right inguinal (iliac), Pubic (hypogastric), and Left inguinal (iliac).
The Epigastric region is centrally located in the upper row of the nine abdominopelvic regions.
The Right hypochondriac and Left hypochondriac regions border the epigastric region on the right and left sides, respectively.
The Umbilical region is located centrally in the middle row of the abdominopelvic regions.
The lateral regions in the middle row are the Right lateral (lumbar) and Left lateral (lumbar) regions.
The Pubic (hypogastric) region is centrally located in the lower row of the abdominopelvic regions.
The lateral regions in the lower row are the Right inguinal (iliac) and Left inguinal (iliac) regions.
Four planes delineate the nine abdominopelvic regions.
Dividing the abdomen into nine regions helps in locating and describing the positions of internal organs more precisely.