Controlled variable
Name the controlled variable, sensor, integrator, effector and feedback direction. A number without its loop is only a fact to memorise.
CONTROL · EXCHANGE · ADAPTATION
Build the mechanism.
Then recall the fact.
Four connected anchors for study; use lawful sources for detailed diagrams, values and equations.
Move, cross, respond
Ask what moves, the barrier it crosses, the driving force and what changes the exchange.
Signal to response
Connect stimulus, membrane behaviour, propagation, response and recovery. Keep time course visible.
Context changes models
Activity, posture, environment, age and disease context can alter a response. State the context first.
TEST THE MODEL
Recall mechanism, not headlines.
Use the original core check, then add source-specific facts from materials you lawfully access.