*Pat and Ernst improvise a fight for 1 minute* Pat: Just kidding! Did you guys get nervous? Ernst: Good! Because now, we’re talking about the Nervous System. Actually only this guy will. He’s gonna teach me. Right, bro? Pat: Fine! So what do you know so far about the Nervous System? Ernst: Umm, it’s the system that makes us nervous? Pat: Nah, dude. You have lots to learn. Ernst: So teach me, then. Pat: Ok! But before that, I’ve got some kwento first, man. So this morning was a typical morning for me. I woke up, thinking about that dream I’ve been having about this giant shrimp that was chasing me, but then I remembered we have this presentation for class later, so I got anxious, man. Before I left for school, I made myself some cereal first ‘cause I was hungry. And before going to class I bought coffee, but I let it cool off first because it kinda burned my mouth yesterday. Ernst: That’s it? So boring, dude. What’s the point? Pat: Actually all of these actions are good examples of what my nervous system does for me. The odd dream I had, the sensation of hunger and the notion of being burnt are all processed and executed by electrical and chemical signals to and from your neurons. Ernst: So it basically controls everything? Pat: Yes, everything. Our thoughts, emotions, feelings, actions, reactions and imaginaaaaation. Every organ and organ system in our body basically bows down to the nervous system. Ernst: That’s so cool, man. Pat: Actually, all of our thoughts and actions can be boiled down to three main functions: sensory input, integration and motor output. Ernst: What do you mean? Pat: For example, you happen to step on a thumb tack. The sensory receptors on your foot detect that sharp foreign object. That info is your sensory input. From there, your nervous system processes that input, and decides what should be done about it. Now that’s what you call integration. Ernst: Ahhhhhh Pat: Your nervous system decides if you should scream your lungs out of extreme pain while you take it out or just be all chill about it and just remove it from your foot gracefully. Those reactions are the motor output. Ernst: So sensory input, integration, and motor output. Correct? Pat: Yep! When we talk about the nervous system, we also have to talk

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*Pat and Ernst improvise a fight for 1 minute*Pat: Just kidding! Did you guys get nervous?Ernst: Good! Because now, were talking about the Nervous System. Actually only this guy will. Hes gonna teach me. Right, bro?Pat: Fine! So what do you know so far about the Nervous System?Ernst: Umm, its the system that makes us nervous?Pat: Nah, dude. You have lots to learn. Ernst: So teach me, then.Pat: Ok! But before that, Ive got some kwento first, man. So this morning was a typical morning for me. I woke up, thinking about that dream Ive been having about this giant shrimp that was chasing me, but then I remembered we have this presentation for class later, so I got anxious, man. Before I left for school, I made myself some cereal first cause I was hungry. And before going to class I bought coffee, but I let it cool off first because it kinda burned my mouth yesterday.Ernst: Thats it? So boring, dude. Whats the point?Pat: Actually all of these actions are good examples of what my nervous system does for me. The odd dream I had, the sensation of hunger and the notion of being burnt are all processed and executed by electrical and chemical signals to and from your neurons.Ernst: So it basically controls everything?Pat: Yes, everything. Our thoughts, emotions, feelings, actions, reactions and imaginaaaaation. Every organ and organ system in our body basically bows down to the nervous system. Ernst: Thats so cool, man. Pat: Actually, all of our thoughts and actions can be boiled down to three main functions: sensory input, integration and motor output. Ernst: What do you mean?Pat: For example, you happen to step on a thumb tack. The sensory receptors on your foot detect that sharp foreign object. That info is your sensory input. From there, your nervous system processes that input, and decides what should be done about it. Now thats what you call integration. Ernst: AhhhhhhPat: Your nervous system decides if you should scream your lungs out of extreme pain while you take it out or just be all chill about it and just remove it from your foot gracefully. Those reactions are the motor output.Ernst: So sensory input, integration, and motor output. Correct? Pat: Yep! When we talk about the nervous system, we also have to talk about its several levels of organization. The two main parts are the Central NS and the Peripheral NS. The CNS comprises of the brain and spinal cord. Its what decided to anxiously remove that thumb tack from your foot and gave the order to your hand. The PNS, on the other hand, is composed of all the other nerves that branch off from the brain and spine and allow your CNS to communicate with the rest of your body. Ernst: Wow, I never realized how important the Nervous System is. Pat: Yeah, but thats not even the half of it. The PNS and CNS actually branch out to have more divisions. Thats looking at it, in the big picture. But what the nervous system really comes down to is its, building blocks, the neuron. Id love to explain to what neurons are and how crucial they are to our lives, but Im kinda tired talking already. Ill let this guy explain it to you. *PLAY VIDEO* 5:21 - 7:47Pat: So did you get that?Ernst: Yah! Is that all you need to know about these neurons?Pat: Actually, thats also still not the half of it. Theres the the action potential, the sodium-potassium pump, the salutatory conductionErnst: You lost me. Pat: All of which will be discussed in the next episode of Discovering Your Body. See you all next week. ;)