In the myelinated neuron, the myelin sheaths are separated by a small gap called . . . that facilitates the neural impulse to jump from one point to another.
The length of the myelin sheath along the axon is roughly 1 mm in the PNS. Between two nearby myelin sections, there are roughly 1-μm-long holes called hubs of Ranvier
In myelinated axons, Schwann cells structure the myelin sheath. The sheath isn't consistent. Individual myelinating Schwann cells cover around 1 mm of an axon—comparing to around 1000 Schwann cells along a 1-m length of the axon. The holes between neighboring Schwann cells are called hubs of Ranvier.
The myelin encompassing the neurons secures the axon and helps in the speed of transmission. The myelin sheath is separated by focuses known as the hubs of Ranvier or myelin sheath holes. Electrical driving forces can hop starting with one hub then onto the next, which assumes a part in accelerating the transmission of the sign.
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