During a neuroanatomy dissection, medical student Lindiwe notices a white, insulating layer around many axons in the vertebrate spinal cord. Her lecturer explains that this structure plays a key role in nervous system communication. What is the primary function of this insulating layer?

Question

Answer

It produces neurotransmitters for synaptic communication.

Answer

It receives signals from neighbouring neurons.

Answer

It defends the nervous system against pathogens.

Answer

It speeds up the transmission of electrical signals and reduces signal loss.

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During a neuroanatomy dissection, medical student Lindiwe notices a white, insul...

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