The myelin sheath enables faster nerve signal transmissionQuestion 7Select one:TrueFalse

The purpose of the myelin sheath is toMultiple choice question.slow transmission of nerve impulses.allow substances to pass into and out of neurons.speed transmission of nerve impulses.cushion the axons for protection.

What is the function of the myelin sheath?Select the correct definitionSpeeds up conduction of an action potentialLocation of protein synthesis and cellular machineryReceives incoming signals from other neuronsRegulates chemical environment for signalingRegeneration of action potential

Which statement about myelination is false?Select one:Select the correct definitionMyelin sheaths are created by glial cells.Myelin serves to sharply increase the time constant of the axon.Multiple layers of closely opposed glial membranes wrap the axon and serve as an electrical insulator.Myelin is absent at the nodes of Ranvier.Sodium and potassium channels are clustered at the nodes of Ranvier.

Which glial cell insulates nerve fibers from extracellular fluids and speeds up signal conduction in the brain?

The particular components on nerve endings that specialize them for particular stimuli on our skin areaccessory structures1size of the nerve endings2ion channels3myelin sheaths