compact myelin

id: GO:0043218
name: compact myelin
namespace: cellular_component
type: go
obsolete: False

Description: The portion of the myelin sheath in which layers of cell membrane are tightly juxtaposed, completely excluding cytoplasm. The juxtaposed cytoplasmic surfaces form the major dense line, while the juxtaposed extracellular surfaces form the interperiod line visible in electron micrographs.

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