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Interposed nucleus : ウィキペディア英語版 | Interposed nucleus
The interposed nucleus is a deep nucleus of the cerebellum and is composed of the globose nuclei and the emboliform nuclei. It is located in the roof (dorsal aspect) of the fourth ventricle, lateral to the fastigial nucleus. It receives its afferent supply from the anterior lobe of the cerebellum and sends output via the superior cerebellar peduncle to the red nucleus. The interposed nucleus is located in the paravermis of the cerebellum. It receives input from the ipsilateral cuneocerebellar tract and the dorsal spinocerebellar tract, which originate in the accessory cuneate nucleus and Clarke's nucleus, respectively. The interposed nucleus is responsible for coordinating agonist/antagonist muscle pairs, and therefore a lesion in this area causes tremor. The interposed nucleus is smaller than the dentate but larger than the fastigial nucleus. ==Function== Functionally, it modulates muscle stretch reflexes of proximal limb muscles.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Interposed nucleus」の詳細全文を読む
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