Houston Methodist. Leading Medicine

Elbow FAQ

Question:

What is the radial tunnel?

Answer:

On the outside part of the elbow, the radial nerve enters a tunnel formed by muscles and bone. This is called the radial tunnel. Passing through the radial tunnel, the radial nerve runs below the supinator muscle. The supinator muscle lets you twist your hand clockwise. This is the motion of using a screwdriver to tighten a screw.



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