How is an impulse sent across a neurone?

Over a synapse: SYNAPSE - small gap where 2 neurons meet 1. An electrical impulse travels along the first axon: 2. This triggers the nerve-ending of a neurone to release neurotransmitters (chemical messengers ) 3. These chemicals diffuse across the synapse & bind with receptor molecules on the membrane of the second neurone 4. The receptor molecules on the second neurone bind to the specific neurotransmitters released from the first neurone. This stimulates the second neurone to transmit the electrical impulse