Abstract
Intracellular Neurobiotin-injections were used to label functionally identified neurons in the rostro-dorsomedial part of the trigeminal oral nucleus (Vo.r) in the cat. The labeled Vo.r neurons with the mechanoreceptive field in oral tissues innervated bilaterally either jaw-opening motoneurons or jaw-closing motoneurons. This result suggests that Vo.r neurons play an important role in sensory-motor reflexes responsible for coordination of bilaterally symmetrical jaw movements.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Axons / physiology
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Axons / ultrastructure*
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Biotin / analogs & derivatives*
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Cats
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Dendrites / physiology
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Dendrites / ultrastructure
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Functional Laterality / physiology*
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Mandibular Nerve / cytology
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Mandibular Nerve / physiology
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Masticatory Muscles / innervation
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Masticatory Muscles / physiology
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Motor Neurons / cytology*
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Motor Neurons / physiology
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Neural Pathways / cytology*
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Neural Pathways / physiology
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Pons / cytology*
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Pons / physiology
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Presynaptic Terminals / physiology
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Presynaptic Terminals / ultrastructure
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Reflex, Abnormal / physiology
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Trigeminal Nucleus, Spinal / cytology*
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Trigeminal Nucleus, Spinal / physiology