1. Crude touch, pain and temp - for the head, neck, mouth and teeth. This is GSA. The afferents go to the spinal trigeminal nucleus which is located from the SC to the mid pons.
2. Two point discrimination - for the head, neck and mouth. This is GSA. Afferent for to the chief/principal trigeminal nucleus in the mid pons.
3. Proprioceptive information of jaw muscles. This is monitoring the tension in the jaw muscles. This is GVA. Afferent go to the mesencephalic nucleus of 5, which is from the mid pons through the mesencephalon.
4. Innervation to muscles of mastication. This is SVE. Efferents from the motor nucleus of 5.