1 Many, a majority of companies in this research do take a strategic approach to digital. 2  From talking to companies, I find the creation of digital plans often occurs in two stages.First a separate digital marketing plan is created.
medullary sheath myelin sheath. myelin sheath (nerve sheath) the sheath surrounding the axon of myelinated nerve cells, consisting of concentric layers of myelin formed in the peripheral nervous system by the plasma membrane of Schwann cells, and in the central nervous system by the plasma membrane of oligodendrocytes.
What does myelin mean in Medical Dictionary?: The fatty substance that covers and safeguards nerves. Myelin is a layered muscle that surrounds the neurological materials (axons). This sheath round theâ¦