Abstract
The cytoarchitecture and the histochemistry of nucleus prepositus hypoglossi and its afferent and efferent connections to oculomotor structures are described. The functional significance of the afferent connections of the nucleus is discussed in terms of current knowledge of the firing behavior of prepositus neurons in alert animals. The efferent connections of the nucleus and the results of lesion experiments suggest that it plays a role in a variety of functions related to the control of gaze.
MeSH terms
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Abducens Nerve / anatomy & histology
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Abducens Nerve / physiology
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Animals
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Cerebellum / anatomy & histology
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Eye Movements / physiology*
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Humans
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Hypoglossal Nerve / anatomy & histology
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Hypoglossal Nerve / physiology
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Medulla Oblongata / anatomy & histology*
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Medulla Oblongata / chemistry
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Medulla Oblongata / physiology
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Neural Pathways / anatomy & histology
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Neural Pathways / physiology
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Neurons / chemistry
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Neurons / ultrastructure
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Neurotransmitter Agents / analysis
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Nitric Oxide / analysis
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Oculomotor Muscles / innervation*
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Primates
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Reflex, Vestibulo-Ocular / physiology
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Superior Colliculi / anatomy & histology
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Thalamus / anatomy & histology
Substances
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Neurotransmitter Agents
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Nitric Oxide