The surgeon's scissor-jaw reflex.

The surgeon's scissor-jaw reflex.

The Dual Nature of Respiratory Jaw Reflex.

Mathur and Chowdhuri (195'2) described a reflex mechanism, consisting of an increase in respiration rate on opening the mouth, operative in dogs only when their body temperature is raised. This was then confirmed by Kumar (1953) who stated that in majority of the dogs this mechanism starts operating between 40 41°C body temperature, and then quickly disappears beyond 42°C. Kumar and Sinha (1961...

Jaw-Jerk Reflex in Human Subjects

During voluntary jaw clenching, a sharp tap to the menton of the mandible resulted in a transitory silent period (pause) in the electromyographic activity of the masseter and anterior temporalis muscles. Factors that could influence the duration of the silent period were studied, including direction and magnitude of the stimulus applied by the operator, the amount of muscular effort exerted by ...

Running head: HISTAMINERGIC INPUTS IN THE JAW-CLOSING REFLEX ARC

Involvement of Histaminergic Inputs in the Jaw-Closing Reflex Arc 1 2 Chikako Gemba,* Kiyomi Nakayama,* Shiro Nakamura, Ayako Mochizuki, Mitsuko 3 Inoue, Tomio Inoue 4 5 Department of Oral Physiology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, 6 Japan; and Department of Pediatric Dentistry, Showa University School of Dentistry, 7 Oota-ku, Tokyo, Japan 8 9 Running head: HISTAMINE...

Involvement of histaminergic inputs in the jaw-closing reflex arc.

Histamine receptors are densely expressed in the mesencephalic trigeminal nucleus (MesV) and trigeminal motor nucleus. However, little is known about the functional roles of neuronal histamine in controlling oral-motor activity. Thus, using the whole-cell recording technique in brainstem slice preparations from Wistar rats aged between postnatal days 7 and 13, we investigated the effects of his...