 you have to be able to turn the message off. If you can't turn the message off in this example, this is a great example of, dude, we got overwhelmed. How did we remove those receptors? Well, the cell itself literally will go, okay, that's cool, I'm going to endocytose the receptors. It makes a little internal bubble of receptor. The receptor is inside that bubble I just made. And then the bubble goes into the cell and the cell says, dude, you're done, your game is played, we've had enough of you. And so you can actually, if we want to stop the signal, I'm going to make you a list on another piece of paper. Look, because this is a piece of paper, isn't it? I'm going to make it wrap there, wrap there, stop. Number one, remove receptors. Easy, we're just going to endocytose our receptor and digest it. And that's what we were talking about. If we have an overdose of stimulus, we might just remove the receptors to stop that because it got crazy. You can remove the signal. And the signal, how are we going to remove it? Stop producing it, or actually we can digest it. And usually this involves an enzyme. Let's say if I got all of them, digest it, reabsorb the signaling molecule and endocytose it. So if you, digesting it is one way, you can also reabsorb it. But in my little example here, that doesn't quite make sense because where would we reabsorb it to? When we talk about neurons and neuron signaling, then that will make a little more sense. You have some strategies. You can see that there are tools that we're going to take advantage of to help us like really communicate precisely from, dude, your eyeball to your like tail feathers. Okay, you don't have tail feathers, but you get the idea. Now we're going to review our pathways. We're going to review the whole, like from an anatomical and physiological perspective, we're going to review a pathway thinking, remembering that all we're doing is communicating each part of the pathway. We have to have some form of communication between them. And dude, that's what physio is all about. That's what it's all about. Hey!