Cross-innervation後の筋肉の変化--組織化学的形態からみた筋線維の分布

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The aim of the present experiment was to investigate whether the histochemical characteristics were changed after cross-innervation of laryngeal muscle.Buller et al. and others have shown that dark muscle becomes light by sectioning and cross-uniting the nerves to dark muscle. These findings were confirmed in rabbits by our preliminary study.The present experiment was divided into two parts: implantation of a cricothyroid muscle block with an external branch of the superior laryngeal nerve in the denervated thyroarytenoid muscle (Group 1) and in the denervated posterior cricoarytenoid muscle (Group 2) after severance of the recurrent laryngeal nerve.The experiment showed that the reinnervated thyroarytenoid muscle of Group 1 and the posterior cricoarytenoid muscle of Group 2 histochemically resembled the cricothyroid muscle on succinic dehydrogenase staining.It is concluded that the histochemical property of the cross-innervated muscle as appearing on succinic dehydrogenase staining is determined neurally.
耳鼻咽喉科臨床学会の論文