How is a nerve impulse transmitted across a synapse?

A synapse is gap between two neurones. When a nerve impulses travels along the axon reaches the end of the pre-synaptic neurone, the release of chemical messengers (called neurotransmitters) is triggered. These molecules diffuse across the synapse and bind to receptors on the postsynaptic neurone. Here, they cause a response and cause the nerve impulse to be transmitted along the second axon.

MD
Answered by Marina D. Biology tutor

12085 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Describe the structure of a triacylglyceride


How can a child have cystic fibrosis when neither of the parents have the disorder? (5 Marks)


What are proteins?


can you explain the process of muscle contraction


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning