The transumbilical plane or umbilical plane is a horizontal line that passes through the abdomen at the level of the navel (or umbilicus).
Clinicians during physical examination they use the transumbilical plane and its intersection with the median plane to divide the abdomen into four quadrants.
Four quadrants are right upper quadrant (RUQ), right lower quadrant (RLQ), left upper quadrant (LUQ), left lower quadrant (LLQ)
This help clinicians to localize, identify and diagnose a patients symptoms.
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