An injury to the ulnar nerve causes
A) claw hand.
B) inability to oppose the thumb.
C) the "hand of benediction."
D) wrist drop.

Question

Quizplus · Accepted Answer

An injury to the ulnar nerve causes claw hand, which is characterized by the inability to fully extend the fingers and the characteristic appearance of the hand resembling a claw. Option B is caused by an injury to the median nerve, option C is caused by an injury to the median and/or ulnar nerve, and option D is caused by an injury to the radial nerve.

An Injury to the Ulnar Nerve Causes