the second code is THIEF IS MR SILVA
On Counterfeit Island he's at the art gallery on Early Poptropica Island.
Axon sends the message. Dendrite receives it.
You go back to the museum, where a package is waiting for you. Scanning it will give you a message that sends you off on a brief visit to another island.
It depends what the message is.
myelinated
Retina
The secret message sends messages secretly.
When you want to move a muscle, your brain sends a message out to the muscle you want to move, and the muscle sends a message back to your brain that your moving it and where.
Give you cell number instead. It sends one little message with a code! that's all :D
Your afferent neurons send a message to your brain.
Afferent
It sends the message to your brain of what your seeing