You can look at my citation manager for some educational resources on the topic however https://www.zotero.org/i_o/collections/C2QRMIZE

But I would mostly recommend a neuroscience textbook. The following link is to the entry discussing what a neurotransmitter is so I think you'll find it immediately interesting https://www.ncbi.nlm.nih.gov/books/NBK10957/

In general neurotransmitters trigger a response in the target neuron by interacting with a channel embedded in the cell wall. This can trigger a change in the target cell if the triggered channel causes a protein to be released, or it can be an input signal used by the target to determine whether or not it should fire and pass a signal (through the medium of neurotransmitters) on to the neurons it itself targets.

If you are interested in the topic I strongly recommend creating a personal glossary for yourself. That textbook I linked has one I believe, and that ncbi domain has many other useful resources. There is a lot of simple sentences whose meaning is obscured purely because of a deficit of vocabulary, once you get some definitions down then a lot of medical texts really open up.

https://chatgpt.com/share/6813d85a-4d20-800f-881a-9b6133281d...

I fed it the article and asked for a python sim.