UKMLA PLAB AMC USMLE Prometric MCQ

 Question:  USMLE step1 Mcq 22:
A man came to the emergency room after a road traffic accident. He had swelling, pain and shortening of the left arm. On examination the man was found to have a fracture of the mid shaft of the humerus.On further examination the man was found to have a wrist drop, finger drop and thumb drop on the left side. The cause for this is:

a) injury to the radial nerve
b) injury to the ulnar nerve
c) injury to the median nerve
d) injury to the axillary nerve
e) none of the above