Saltatory conduction in myelinated axons occurs only at the nodes where ions pass through membrane channels, speeding up transmission. Unmyelinated fibers experience continuous depolarization waves, making them slower.
التوصيل القفزي في المحاور المغمدة بالميالين يحدث فقط في العقد، حيث تنتقل الأيونات عبر قنوات الغشاء، مما يسرع النقل. الألياف غير المغمدة تشهد موجة إزالة استقطاب مستمرة، مما يجعلها أبطأ.
| Front | myelinated vs unmyelinated |
|---|---|
| Back | depolarisation only occurs at nodes (no myelin present), where Na+ passes through protein channels in membrane, localised circuits form between adjacent nodes, where action pots jump between nodes (saltatory conduction), faster than unmyelinated where theres a wave of depolarisation (the more protein channels opened for movement of ions, slower the process) |
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