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The Abdomen IV: The Right Upper Quadrant

The Abdomen IV: The Right Upper Quadrant
The Right Upper Quadrant The following are the four quadrants of the abdomen: LUQ (left upper quadrant) LLQ (left lower quadrant) RLQ (right lower quadrant) RUQ (right upper quadrant) The right upper quadrant (RUQ) contains the following: Diaphragm Portion of the pancreas (“head”) Liver Gall bladder Right ureter and kidney (unique to the RUQ) Large intestines Small intestines Diaphragm The diaphragm is the oblong muscle that divides the abdomen below from the chest above. When it pulls down, it sets up a negative pressure in the lungs above, which are forced to expand and draw in air. Problems with the diaphragm are discussed below: Diaphragmatic (hiatal) hernia: This can cause symptoms in the RUQ, but this condition is more aptly addressed in Part I: The Left Upper Quadrant. Diaphragm muscle strain: This can occur with sneezing or shouting. Depending on the side—left or right—referred pain to the left or ri ...

The Abdomen Part III: The Right Lower Quadrant

The Abdomen Part III: The Right Lower Quadrant
The Right Lower Quadrant The abdomen can be separated into four quadrants: LUQ (left upper quadrant) LLQ (left lower quadrant) RLQ (right lower quadrant) RUQ (right upper quadrant) The right lower quadrant The right lower quadrant (RLQ) contains the following: Right ureter Right ovary Right fallopian tube Appendix Small intestines Ascending large colon Ureter The paired ureters (one in the LLQ and one in the RLQ) drain collected urine from their respective kidneys and travel under the floor of the abdomen to the pelvis, where they drain into the bladder. Drain is not the right word, because they exhibit undulating musculature that “milks” the urine down the line, which is known as peristalsis, and spits urine into the bladder every few moments. Like all structures covered with the lining of the abdomen (peritoneum), this lining is very sensitive to distension, be it from a bubble distending a baby’s colon in ...

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