91. Function of the trochlear nerve

  1. The trochlear nerve innervates only one muscle, the superior oblique muscle of the eye. (T/F?)
  2. The superior oblique muscle abducts, depresses and externaly rotates the eye. (T/F?)
  3. An injury to the trochlear nerve causes horizontal diplopia. (T/F?)
  4. An injury to the trochlear nucleus will result in symptoms in the eye on the same side. (T/F?)
  5. An injury to the trochlear nerve, after it exits the mesencephalon, will result in symptoms in the eye on the same side. (T/F?)
  6. An eye affected with the trochlear nerve palsy is positioned upwards relative to the unaffected eye. (T/F?)

  1. T
  2. F
  3. F
  4. F
  5. T
  6. T