Here's why:
* Rubber coating acts as an insulator, preventing electricity from flowing where it shouldn't.
* Myelin sheath is a fatty, insulating layer that wraps around the axon of a neuron. This insulation prevents the electrical signal (the nerve impulse) from leaking out as it travels down the axon.
Just like rubber coating on a wire, the myelin sheath helps to:
* Speed up the transmission of nerve impulses: The insulation provided by myelin allows the electrical signal to travel much faster along the axon.
* Prevent interference: The myelin sheath prevents the signal from being disrupted by other electrical signals in the surrounding environment.
Without the myelin sheath, nerve impulses would be slow and prone to interference, making it difficult for our brains to function properly.
