Translations:Niere (Ren)/8/en

The kidney (Ren) is a paired urinary organ located retroperitoneally in the abdominal cavity. Due to its central location it touches almost all organs. They are located between the 12th thoracic and 3rd lumbar vertebra, while the hilum is located at the level of the 2nd lumbar vertebra.
The liver is ventral to the kidney. The space in between is called Recessus hepatorenalis and represents the deepest space of the abdominal cavity in humans. Therefore it is a popular site for pathological fluid deposition. The kidneys project a triangle onto the trunk which extends from the lower edge of the bony thorax to the lateral edge of the spinal column.