Mesencephalic Trigeminal Nucleus
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Connections and neurochemical characterization of neural pathways involved in the control of jaw movements / Conexões e caracterização neuroquímica de vias neurais envolvidas com o controle dos movimentos mandibulares
O núcleo motor do trigêmeo (Mo5) está cercado por um anel de neurônios pré-motores localizados na região h. Estudos demonstram que neurônios que inervam o Mo5 estão distribuídos no tronco encefálico e no prosencéfalo. Após implante de traçador retrógrado no Mo5, verificamos células retrogradamente marcadas no núcleo mesencefálico do trigême
Publicado em: 2007
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2. Distribution of mesencephalic nucleus and trigeminal ganglion mechanoreceptors in the periodontal ligament of the cat.
1. In anaesthetized cats recordings have been made in the mesencephalic nucleus of the fifth cranial nerve and the trigeminal ganglion from neurones that respond when forces are applied to the mandibular canine tooth. The site of the mechanoreceptors in the periodontal ligament and their distribution around the tooth root have been determined. 2. Receptors w
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3. Jaw reflexes and masseter electromyograms in mesencephalic and pontine lesions: an electrodiagnostic study.
Jaw reflexes and masseter electromyograms were studied in five patients with mesencephalic and 11 patients with pontine lesions, vascular or tumorous in nature. In the former group jaw reflexes were abnormal, being delayed or absent, whereas masseter electromyograms were normal. In the latter group, both jaw reflexes and masseter EMG, showing denervation, we
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4. Effects of sympathetic nerve stimulation on intra-oral mechanoreceptor activity in the cat
1. Micro-electrode recordings were made from intra-oral mechanoreceptor neurones in the trigeminal ganglion and mesencephalic nucleus of the fifth nerve in the cat.
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5. Morphological and electrophysiological determination of the projections of jaw-elevator muscle spindle afferents in rats.
The fluorescent compound Lucifer Yellow was injected into the somata of nine identified jaw-elevator muscle spindle afferents, located in the V mesencephalic nucleus. Reconstructions of the central course of their axons were subsequently made from serial, transverse, sections to identify sites of projection. Three sites of termination were identified on the
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6. Multisensory Integration in Mesencephalic Trigeminal Neurons in Xenopus Tadpoles
Mesencephalic trigeminal (M-V) neurons are primary somatosensory neurons with somata located within the CNS, instead of in peripheral sensory ganglia. In amphibians, these unipolar cells are found within the optic tectum and have a single axon that runs along the mandibular branch of the trigeminal nerve. The axon has collaterals in the brain stem and is bel
American Physiological Society.
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7. ATP-gated cation channels (P2X purinoceptors) in trigeminal mesencephalic nucleus neurons of the rat.
1. We have investigated whether receptors for ATP exist on neurones of the trigeminal mesencephalic nucleus (MNV) of the rat using whole-cell and outside-out patch-clamp recording in coronal brainstem slices. 2. With whole-cell recording, the batch application of ATP, adenosine 5'-O-[3-thiotriphosphate] (ATP gamma S) and alpha,beta methylene adenosine tripho
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8. Pioneer neurons in the mouse trigeminal sensory system.
Pioneer neurons establish preliminary nerve pathways that are followed by later-growing axons. The existence of pioneers and their importance is well documented in invertebrate systems. In mammals, early neuronal development has generally been difficult to study because of the size and complexity of the embryos, and the lack of adequate markers. Here we look
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9. Projection of cat jaw muscle spindle afferents related to intrafusal fibre influence.
1. A method of classification of muscle spindle afferents using succinylcholine (SCh) and ramp stretches has recently been described, which appears to estimate separately the strength of influence of bag1 (b1) and of bag2 (b2) intrafusal fibres. Increase in dynamic difference (delta DD) indicates b1 influence whilst increase in initial frequency (delta IF) i