Nervous tissue is made up of neutrons and neutroglial cells. Which of the following statements about these two cells is/are false ?
(i) Neuroglia make up more than one-half the volume of neutral tissue in our body
(ii) Neuroglia protect and support neurons
(iii) When a neuron is suitaly stimulated, an electrical disturbance is generated which swiftly travels along its cytosol
(iv) Arrival of the disturbance at the neuron's endings triggers stimulation or inhibition of adjacent neurons or other cells.