What is myelination?单项选择题

A

Process by which neurons coordinate the activities of muscle groups

B

Process by which cells acquire specialized structures and functions

C

Process of coating neural pathways with a fatty substance that enables faster communication between cells

D

Process of normal elimination of excess cells to achieve more efficient functioning

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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.

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