The nurse moves a wisp of cotton lightly across the anterior scalp, paranasal sinuses, and lower jaw to test the function of which cranial nerve?

Question

Quizplus · Accepted Answer

The CN V (trigeminal cranial nerve) supplies sensation to the cornea, iris, lacrimal glands, conjunctiva, eyelids, forehead, nose, nasal and mouth mucosa, teeth, tongue, ear, and facial skin. The CN IV (trochlear nerve) supplies downward and inward eye movement. The CN VI (abducens nerve) supplies lateral eye movement. The CN VII (facial nerve) supplies movement of facial expression muscles except the jaw, closes the eyes, and allows labial speech sounds (b, m, w, and rounded vowels).

The Nurse Moves a Wisp of Cotton Lightly Across the Anterior