Facial nerve testing in cranial nerves

Face, ear, taste, tear

  • Face – muscles of facial expression
  • Ear – controls stapedius muscle, patient may complain of hyperacusis
  • Taste – sensation to anterior 2/3 of tongue
  • Tear – controls lacrimal glands through parasympathetic innervation

Symptoms may suggest facial nerve (VII) palsy e.g. Bell’s palsy


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