The efferent limb of the gag reflex is?
The gag reflex involves a brisk and brief elevation of the soft palate and bilateral contraction of pharyngeal muscles evoked by touching the posterior pharyngeal wall The vagus nerve (CN X) provides the efferent limb of the gag reflex (muscles of the soft palate). The glossopharyngeal nerve provides the afferent limb of the gag reflex.
Facial nerve
Glossopharyngeal nerve
Trigeminal nerve
Vagal nerve
Brainstem, cerebellum and ventricles