Transverse section, showing the relations of the capsule of the kidney. The<unk>  () is the acute<unk>  formed on either side of the human back between the twelfth rib and the vertebral column. The kidney lies directly below this area, so is the place where, with percussion (), pain is elicited when the person has kidney inflammation. The presence of pain is marked as a positive Murphy's punch sign or as<unk>  tenderness.
Costovertebral angle
Iliac spine
Radial plane
Presacral space
Neutral spine
Axon hillock
Supracristal plane
Cervical rib