“…All three subdivisions receive either nociceptive or non-nociceptive afferents from head and face, such as those sensitive to gentle pressure and vibrissa deflection (Hayashi et al, 1984;Jacquin et al, 1989). In addition, Sp5 receives proprioceptive inputs from vocal tract/intra oral structures including the temporo-mandibular joint and tongue muscles (Romfh et al, 1979;Jacquin et al, 1989;Nazruddin et al, 1989;Takemura et al, 1991;Suemune et al, 1992).…”