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9865 Anatomy

A 57 year old woman presents to her family physician complaining of numbness and tingling in her right thumb, index and long finger for the past four weeks. She repos that she wakes up in the middle of the night with these symptoms and needs to shake her hands to “wake” them up. She denies numbness or tingling in her other hand or either leg. She has no neck or upper arm pain. On physical examination, her symptoms are reproduced by Tinel testing. Her symptoms are also exacerbated by hyperflexion of the wrist. There is decreased sensation over the palmar aspects of the thumb, index and middle fingers. There is no apparent motor weakness. Which of the following is the most likely diagnosis?

AC5 cervical nerve root compression
BCarpal tunnel syndrome
CCubital tunnel syndrome
DRadial tunnel syndrome
Anatomy
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9866 Anatomy

The hypoglossal nerve provides:

AMotor innervation to styloglossus and hyoglossus muscles only
BMotor innervation to all of the muscles of the tongue both intrinsic and extrinsic
CSensory innervation to the posterior third of the tongue
DSensory innervation to the anterior two-thirds of the tongue
Anatomy
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