nodus ranvier adalah bagian atau titik pada akson yang tidak terbungkus selubung mielin.
nodus ranvier memiliki diameter sekitar 1 mikrometer.
nodus ranvier ditemukan oleh louis-antoine ranvier.
selubung mielinberfungsi sebagai pelindung akson dan membungkusnya, namun selubung ini tidak membungkus secara keseluruhan, dan yang tidak terbungkus merupakan nodus ranvier.
nodus ranvier berfungsi untuk mempercepat impuls saraf.
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nodes of ranvier (the band)