<prompt> Which is the Nucleus of masseteric reflex?Superior sensory nucleus of trigeminal nerveSpinal nucleus of trigeminal nerveMesencephalic nucleus of trigeminal nerveDorsal nucleus of vagus nerve  <response>: The jaw jerk reflex or the masseteric reflex is a stretch reflex used to test the status of a patient;s trigeminal nerve CN VCell bodies of neurons carrying proprioceptive sensations from muscles of mastication, TMJ teeth and tongue are in the Mesencephalic nucleus of trigeminal nerve.Ref: Vishram Singh textbook of clinical neuroanatomy second edition pg 100 