What is myelination?

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BlackTom AI · Accepted Answer

When approaching the concept of myelination, it’s helpful to map it to what myelin does for neurons. 
Option 1: 'Process by which neurons coordinate the activities of muscle groups' This describes coordination or motor control processes, not myelination. It’s more about neural circuits and motor planning, not the insulating sheath around axons. 
Option 2: 'Process by which cells acquire specialized structures and functions' This sounds like differentiation or cellular specialization, which is a general developmental concept and not the specific insulating process of neurons. 
Option 3: 'Process of coating neural pathways with a fatty substance that enables faster communication between cells' This matches the definition of myelination: forming a myelin sheath around axons, which is lipid-rich (fatty) and increases conduction velocity, speeding up neural signaling. 
Option 4: 'Process of normal elimination of excess cells to achieve more efficient functioning' This resembles apoptosis or pruning during development, not myelination. 
In summary, the correct option highlights the lipid-rich insulation of axons that accelerates signal transmission, whereas the other choices describe distinct neural development or function concepts that do not pertain to myelin formation.

What is myelination?

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Question at position 32 Schwann cells primarily:Wrap around axons to form myelin sheathsCover axons without gaps for continuous insulationInsulate the central nervous system axonsRegulate the extracellular environment of neuron cell bodies

The axons of peripheral system neurons are surrounded by cells called They wrap the axon in many layers of a whitish, non-conductive protein called . Without this coating, the electrical impulse that propagates the nerve signal can be lost to the surrounding tissue.

Schwann's cells form myelin sheaths around axons in the central nervous system.

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Which of the following is not true about myelination?

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What is myelination?

View Explanation

Log in for full answers

Similar Questions

Dr. Dre is investigating reflexes in two different animals: a crab and a fish. Action potentials are found to pass more rapidly along the fish's neurons. What is a likely explanation?

True or False: In brain development, myelination starts occurring at the end of infancy and continues throughout childhood but then becomes complete at the end of adolescence.

Question at position 32 Schwann cells primarily:Wrap around axons to form myelin sheathsCover axons without gaps for continuous insulationInsulate the central nervous system axonsRegulate the extracellular environment of neuron cell bodies

The axons of peripheral system neurons are surrounded by cells called ______ They wrap the axon in many layers of a whitish, non-conductive protein called ______. Without this coating, the electrical impulse that propagates the nerve signal can be lost to the surrounding tissue.

Schwann's cells form myelin sheaths around axons in the central nervous system.

What allows the action potential to pass quickly and efficiently down the axon?

What involves an increase in the speed and efficiency with which information travels through the nervous system during brain development in children between the ages of 3 and 5.

Which of the following is not true about myelination?

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The axons of peripheral system neurons are surrounded by cells called They wrap the axon in many layers of a whitish, non-conductive protein called . Without this coating, the electrical impulse that propagates the nerve signal can be lost to the surrounding tissue.