Question

What part of the nervous system increases the speed that nerve impulses reach the brain?

synapse

myelin

pain receptors

neuron

Answer 1

The part of the nervous system that increases the speed at which nerve impulses reach the brain is **myelin**. Myelin is a fatty substance that forms a protective sheath around axons of neurons, which allows electrical signals to transmit more quickly between nerve cells by insulating the axons and enabling the impulses to jump between nodes of Ranvier in a process known as saltatory conduction.