<prompt> Which of the following structure passes through Guyons canalFlexor carpi radialisRadial nerveUlnar nerveMedian nerve  <response>: Guyons canal Contents - Ulnar nerve, ulnar aery passing in ulnar tunnel Roof - Formed by palmar carpal ligament Floor - Formed by flexor retinaculum APPLIED ASPECT - Handle bar injury - Commonly seen in long term bikers - Sensory loss in 1 12 fingers on ulnar side 