Following an injury to his arm,a patient complains that he cannot extend the forearm,wrist,and digits.You suspect that he has damaged the
A)median nerve.
B)radial nerve.
C)musculocutaneous nerve.
D)ulnar nerve.
E)axillary nerve.

Question

Quizplus · Accepted Answer

The inability to extend the forearm, wrist, and digits suggests a radial nerve injury. The radial nerve innervates the extensor muscles of the arm, forearm, and hand. Damage to the radial nerve would result in weakness or paralysis of these muscles.

Following an Injury to His Arm,a Patient Complains That He