If "wrist drop" were to appear, there would also be an increased probability of
a) inability to flex the fingers
b) inability to extend the forearm
c) inability to contract the biceps brachii
d) inability to pronate the forearm

Option B is correct.

Explanation:

The radial nerve palsy, also known as wrist drop occurs when the muscles, tendons or nerves surrounding the forearm are damaged. The radial nerve is responsible to supply the whole arm. When the nerve or one of its branches is damaged it may result in partial loss of mobility of the arm.

If a wrist drop is present, it means that the forearm branches of the radial nerve are also affected, and this will cause reduced mobility to the forearm.

answer; i do believe its (b) 12.5 years of age;

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