<prompt> For which of the following nerve palsies is the below test detected?Median nerveUlnar nerveRadial nerveAnterior interosseous nerve  <response>: Ans. B. Ulnar nerveThe picture shows the card test which tests the ulnar nerve palmar interossei. In this test, the examiner inserts a card between the two extended fingers, and the patient is asked to hold it as tightly as possible, while the examiner tries to pull the card out. The power of adductors palmar interossei-adduction PAD can thus be judged. Ulnar nerve supplies the hypothenar muscles, all the palmar and dorsal interossei and medial two lumbricals. 