Muscle cells in a nerve trunk of a frog muscle |
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Authors: | A. P. Anzil M.D. A. Wernig |
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Affiliation: | (1) Max Planck Institute for Psychiatry, Munich, Federal Republic of Germany;(2) Max Planck Institute for Psychiatry, Kraepelinstraße 2, D-8000 Munich 40, Federal Republic of Germany |
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Abstract: | Summary Three muscle fibers were identified by electron microscopy within a nerve of a frog muscle. They resembled extrafusal muscle fibers but were located in an endoneurial rather than in an endomysial compartment. To call these endoneurial muscle fibers the obvious continuation of extrafusal fibers of a muscle spindle is certainly unwarranted; to label these fibers ectopic and to let the matter rest there is probably an understatement of sorts. |
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Keywords: | Electron microscopy Frog Cutaneus pectoris muscle Nerve Muscle spindle |
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