Another example of a synthesis reaction is the formation of sodium chloride (table salt). Because of the very high reactivities of sodium metal and chlorine gas, this reaction releases a tremendous amount of heat and light energy.
Schwann cells make myelin in the peripheral nervous system (PNS: nerves) and oligodendrocytes in the central nervous system (CNS: brain and spinal cord). In the PNS, one Schwann cell forms a single myelin sheath (Figure 1A).
Neuroglia. Your central and peripheral nervous systems depend on certain cells that are sort of the unsung heroes in the nervous system. These cells that form myelin, protect, support, and maintain equilibrium in your nervous system are called glial cells.They are also commonly known as neuroglia and even more simply glia.n more detailed terms, neuroglia are cells in your nervous system that are not neurons. Their role is to be the support team and cheerleaders for the neurons. The neuroglia: 1  Form myelin, which wraps around axons to speed up electric impulse conduction.