Components of nervous tissue Components: nerve cells: neuron, 1012 neurons in the human brain Glial cells: neuroglia Astrocytes Oligodendrocytes Microglia Schwan's cells Function: Neurons: sense, receive, process information initiate and conduct the nerve impulse Glial cells: support, protect, insulate and nourish neurons• Components: • nerve cells: neuron, 1012 neurons in the human brain • Glial cells: neuroglia – Astrocytes – Oligodendrocytes – Microglia – Schwan’s cells • Function: • Neurons: sense, receive, process information, initiate and conduct the nerve impulse • Glial cells: support, protect, insulate and nourish neurons Components of nervous tissue