“…The growing and increasingly detailed literature published since this rep ort 6,13,14,16,18,20,[24][25][26] has demonstrated that stimulation of any of the sensory nerve endings of the trigeminal nerve (transmitted via the ciliary, pterygopalatine, or otic ganglia) activates the afferent arm of the TCR by way of the Gasserian ganglion. The trigeminal nerve then bridges the peripheral afferent component of the TCR with the central afferent component: the superficial medullary dorsal horn and the sensory nucleus of the trigeminal nerve.…”