7. Despolarization: Process. -Nerve imulse open sodium and potassium pumps, so the potential difference disappears. -This process only occurs in the nodes of Ranvier, and it´s called saltatory despolarization.
8. Sinapsys: Pre-synaptic cell. When the nerve impulse comes to the pre-synaptic cell the neurotransmitters are liberated.
16. Bibliography: Information: Biology Book. 3º ESO Oxford Education: Unit 6. Pages: 88-99 Class notes, unit 6. They are gived by José María González 3º E.S.O Escolapios, Albacete.