Have you read “Models of the Mind” by Grace Lindsay? Some good new examples of models in neuroscience.

www.goodreads.com/book/show/50...

Thanks!

So what do you think regulates blood glucose? Most physiologists I think would argue that insulin does. By why not insulin receptors or glucose? I think the regulation as the emergent phenomenon is distributed among the players and not controlled by a single entity.

No, I think your intuition is spot on. It is no longer glucose and that's why it goes away (outflow from the system).

Yes, that is probably what I would do. In this system your target function is how organic carbon compounds are ingested, transported, and stored in a body. Cellular respiration catabolizes (destroys) those organic compounds causing them to leave the system.

The pedagogy guide of BioInteractive’s Model Builder, or Christian’s book, are a good start.
PedagogyGuide: www.biointeractive.org/sites/defaul...

Awesome! Why not add cellular respiration as an outflow from Carbon in the Tissues? I see you wrote the formula. This would illustrate it as an open system that would not necessarily accumulate carbon even though constantly feeding.