V Trigeminal Nerve - Light Touch
The 5th cranial nerve, trigeminal, consists of three
sensory (V1, V2 and V3) and a motor component, V3.
Sensation is tested to light touch with a cotton wisp,
temperature with a cold tuning fork and pain with a
disposable pin. If the patient complains of sensory
symptoms, it is advisable to perform side to side comparisons
moving from the impaired side to the normal side.
- touch a cotton wisp to the forehead, cheek and chin
(avoid the angle of the jaw which is innervated by
upper cervical roots)