Abstract
The purpose of this study was to investigate the response properties of the temporomandibular joint (TMJ) neurons in the trigeminal ganglion during cortically induced jaw movement of the rabbit. The discharges of TMJ units were recorded from the left trigeminal ganglion with metal microelectrodes. All TMJ units recorded in this experiment were slowly adapting type. The firing frequencies of TMJ units increased with displacement of the condyle movement in the jaw opening phase and returned to the initial response level in the jaw closing one. The TMJ neurons are assumed to carry sensory information about the jaw movement to the central nervous system in the jaw opening phase.
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References
Kawamura Y, Abe K (1974) Role of sensory information from temporomandibular joint. Bull Tokyo Med Dent Univ 21:78–92
Lund JP, Matthews B (1981) Responses of temporomandibular joint afferents recorded in the Gasserian ganglion of the rabbit to passive movements of the mandible. In: Kawamura Y, Dubner R (eds) Oral-facial sensory and motor functions. Quintessence, Tokyo, pp 153–160
Tsuboi A, Takafuji Y, Itoh S et al (2009) Response properties of trigeminal ganglion mechanosensitive neurons innervating the temporomandibular joint of the rabbit. Exp Brain Res. doi:10.1007/s00221-009-1978-z
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Takafuji, Y., Tsuboi, A., Tabata, T., Suzuki, O., Watanabe, M. (2010). Unitary discharges of TMJ mechanosensitive neurons during cortically induced jaw movement. In: Sasano, T., Suzuki, O. (eds) Interface Oral Health Science 2009. Springer, Tokyo. https://doi.org/10.1007/978-4-431-99644-6_43
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DOI: https://doi.org/10.1007/978-4-431-99644-6_43
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-99643-9
Online ISBN: 978-4-431-99644-6
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