THE INTRACELLULAR RECORD OF MEMBRANE POTENTIALS OF THE FROG'S INTRAFUSAL MUSCLE FIBER
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概要
- 論文の詳細を見る
The muscle spindle consists of a number of intrafusal striated muscle fibers, which are different from the ordinary motor or extrafusal muscle fibers in several ways. In the mammalian, the intrafusal muscle fibers are considered to be innervated by the small motor nerve fibers. In the frog, however, it has been known that the skeletal muscle contains so-called 'slow' muscle fibers which receive their innervations from the small motor nerve fibers. The close analogy between the mammalian small-nerve spindle system and the frog small-nerve tonus system have been suggested by Kufller & Gerard (1), and recently emphasized by Kuflier and Vaughan Williams (2). It is significant that the frog nerve spindle system is not analogical to the mammalian nerve spindle system. Katz (3) found that the frog intrafusal muscle fibers receive their innervation from the ordinary large motor nerve fibers which also supply the extrafusal muscle fibers.The purpose of the present experiment is to record intracellularly the membrane potential changes of the intrafusal muscle fibers by applying nerve stimulations and to clarify the mode of neuro-muscular transmission in the frog nerve spindle system .
- 久留米大学医学部 The Kurume Medical Journal 編集部の論文
著者
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Koketsu Kyozo
Department Of Physiology Kurume University School Of Medicine
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NISHI SYOGORO
Department of Physiology Kurume University School of Medicine
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