The Tonsillar branch of Cranial Nerve IX provides sensory innervation to the palatine tonsil. 
In my recent visit to Santa Monica for my second MR Neurography scan, (the first one having been performed
 in 2011 by the same physician),  the doctor asked me to specifically show him where the throat pain was located.  This doctor writes his own proprietary protocols; he was the creator of MR Neurography in 1992.
A locater marker was placed on the outside of my jaw to wear during an additional MRI scan. 
In addition, he ordered a section of this MRI with my finger placed inside my throat on ‘the spot’. 

I came home and four days later uncovered a shocking piece of information when researching
 the Glossopharyngeal Nerve on an anatomy app during an appointment with my PT.