Major Dense Lines of a Myelinated Axon

question 2

Multiple Choice

Major dense lines of a myelinated axon

• A) represent the fused extracellular surface of the Schwann cell membrane
• B) represent the fused cytoplasmic surfaces of the Schwann cell membrane
• C) are located at the node of Ranvier
• D) are aligned perpendicular to the intraperiod line
• E) are absent in myelin sheaths formed by oligodendroglia in the central nervous system

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