The nervous system contains not only neurons but also other cells called: axons. glial cells. dendrites. myelin cells.

Answer;

Glial cells

Explanation; The nervous system is made up of neurons and glia. Neurons are specialized cells that are capable of sending electrical as well as chemical signals Glial cells or neuroglia are non-neuronal cells in the central nervous system (brain and spinal cord) and the peripheral nervous system. Glial cells are cells that provide support functions for the neurons by playing an information processing role that is complementary to neurons.