 So sensory receptors come in many different flavors, and there's lots of ways that we can actually classify them. I like this image because it gives you a visual for all the different forms of receptors. And we know, my favorite part about this visual is that you have not only nerves, like this is an actual neuron with a cell body in these. We can consider them like little dendrites. Those are little ends that are sensitive. And that, you know, you can imagine that that's the case. But we can also wrap them in connective tissue and end up with that awesome thing. That's a pressure receptor. You can also connect these afferent neurons to a sensory, like a cell. The cell is modified to pick up sensory stimuli. You can just have, this is the same thing, just little pieces coming off of your neuron. So there's lots of different ways that you can create an opportunity to translate stimulus into an action potential. Now, we can also categorize our receptors by the kind of stimulus that they pick up. So let's make a list of all the possible types of sensory receptors that we can come up with. And then what I'm going to tell you is that we're going to go through a bunch of them and look at how they specifically function. So we can have mechanoreceptors. And mechanoreceptors are going to respond to mechanical or physical stimulus. An example of mechanoreceptors, touch, pressure, tickle, hearing. Hearing is actually waves of hearing sound waves that whack up against your tympanic membrane, your eardrum, and that banging is interpreted by the brain as sound. Pressure, like blood pressure, that's a mechanoreceptor. So that's one type of, one flavor of sensory receptor that we can have. We can also have thermoreceptors. Thermoreceptors pick up temperature changes. You actually have more cold temperature receptors than you do hot temperature receptors. I thought that was interesting. Noseyceptors. Noseyceptors are in their own category because they respond to pain, not painza, but they can respond to that too. They can respond to pain. However, every single stimulus, if big enough, can be perceived as pain. So a bright enough light can be painful. A loud enough sound can be painful. A big enough pressure can be painful. And those aren't noseyceptors that are picking that up. Four, we have photoreceptors. What do you think they respond to? Light. Photoreceptors respond to light, that's one place that we have them. That would be your eyeball. And our last one are chemoreceptors. Chemoreceptors respond to chemicals. Smell is a chemical. You're responding to chemicals in the air. Taste, that's a set of chemoreceptors. So the first group of receptors that we're going to talk about are mechanoreceptors. They're general sensory structures that respond to touch and pressure in the periphery. Okay, let's go ahead. Oops, that's not going to work. Let's go ahead and get ready to talk about that.