level: 15.6 Transmission across a synapse
Questions and Answers List
level questions: 15.6 Transmission across a synapse
| Question | Answer |
|---|---|
| Process of transmission across cholinergic synapse (1) | - Action potential arrives at the end of an axon - This causes calcium gated to open - Calcium diffuses into the presynaptic membrane |
| Process of transmission across cholinergic synapse (2) | - Synaptic vesicles containing ACh fuses w/presynaptic membrane - ACh is released into the synaptic cleft - ACh diffuses across synaptic cleft |
| Process of transmission across cholinergic synapse (3) | - ACh binds with specific complemtnetry receptors on post synaptic membrane - S gated chennels on postsynaptic membrane opne - S rapidly diffuses into the post synaptic neurone |
| Process of transmission across cholinergic synapse (4) | - Causing depolarisation - If a threshold stimulus is achieved an AP will pass down the axon |
| Process of transmission across cholinergic synapse (5) | - ACh is broken down into acetyl and choline by acetylcholinestase - S gated are closed |
| Process of transmission across cholinergic synapse (6) | - Acetyl and choline are actively taken up - Vesicles reformed - this requires ATP |