字幕表 動画を再生する 英語字幕をプリント Alright, so this video may not be appropriate for kids, and it is uh.. It's disturbing, on several different levels. Especially if you're a man... So you know on Smarter Every Day I try to keep everything very intelligent and respectful, but this video is crazy. Like, you need to think about whether or not you want to watch this. Because now that I know this happens, I have nightmares. And they're not good.. [laugh] They're not good nightmares ok? So you just think about whether or not you want to know this information. Do you want to know it? OK... Introduction. - Talk to me. Give an introduction right now. (Destin) Hey it's me Destin welcome to Smarter Every Day. I'm in the Amazon rainforest. [little girl squeal] - [laughter] [clapping] Yes! - Speaking of the penis tree, what this guy does he uh.. yeah. It's the.. pretty much the third most venemous spider in the world. Phoneutria fera I'm gonna stay this far away. - They're really agressive. Should we see how aggressive they are? - Alright, most likely it's gonna hop down, but let's see if we can get him to rear up. - Oh.. Oh no he's like.. (Destin) Holy cow, he's fast. - Who's gonna put it on their face then? - Nooo. - You go ahead. - Yeah. - Will also cause a condition called a priapism in males. (Destin) Priapism. Oh yeah, ice water enema to fix that? Yep. OK this spider is called the Brazillian Wandering Spider, and if you heard what Phil said, he said it causes this condition in males. I assume that means not in females. And there's only a couple of things I can think of that can happen to a male but not to a female. Anyway, we'll come back to that. - If you look underneath that front leg, you see how it's got banding? Black, white and black. Can you see that from this angle? See that? - Yes. - So, when it gets really mad it flips those up in the air and then you can see that black white black white. That's kind of a warning signal. (Destin) It's called a wandering spider? - Yeah. - Because he doesn't make webs? - Correct (Destin) Alright, well I'm done with the third most venemous spider in the world. - Is she done with you? - That's the question. (Destin) OK you're on a jungle walk, an entomologist tells you that this spider can affect the penis. Obviously the first thing you do is you get the books out, find out priapism is a medical emergency involving the penis, which is terrifying. So here's what we're gonna do. We're gonna go to this hospital, we're gonna go find a urologist. We're gonna ask him what are the causes of priapism, and number two and more importantly, what are the fixes for priapism. So we're gonna go in here, I know it's funny, hahaha, Destin's talking about a penis, but think about it. If you're a male or you know a male, you need to know this information. So, if I have to take the hit, I'll do it. I'll try not to blush, but if he's a urologist chances are he's either really funny or really boring, so.. I don't know. Let's go get Smarter Every Day. Missed the door. Dr Sergey Ananyev? Am I saying that right? - That's right. - And you are a uh.. let me get this.. urologist? Which is a... - Glorified pecker checker. [laugh] - Excellent, OK so show me what we're doing here. What is going on with the erection? - Well, erection is a by-product of both nerves and blood vessels working together once a man gets excited. Our penises consist of two chambers that have one way valves. Those two chambers are called cavernosal bodies, and they communicate to each other. - They communicate with each other like hydraulically? - As in, yeah sideways yeah like fenestrations. - Is it priapism or preeapism? - It's priapism, and priapism by definition is a prolonged erection that is unwanted, that usually lasts four hours or longer. - OK so what does that have to do with a spider in the rainforest? That's why I'm hear talking to you. - The spider in the rainforest, once it gets hold of you, is able to stimulate and effect a certain pathway which on the molecular level effects nitric oxide. You'll have this nitric oxide release, which is a molecule. - Right. - That would in turn stimulate another molecule, that will then relax the muscles inside the penis. - So the nitric oxide is what activates whatever this is.. - It's a step in the ladder, yeah. To eventually relax the muscle of the penis to allow the blood flow in. - OK so it's a valve. - Uh, well yeah nitric oxide is just the molecule that helps open the door for a valve but yeah. What you'll actually do is you have.. they're in a way one way valves where the blood flow goes in once a man is excited for whatever reason. - Yeah? - Whether a partner or a spider. [laugh] - OK. - Once the blood flow goes in the one way valves will close and the blood can't come out. - You just made me think about something really strange. So, I'm an engineer and when I was at school we had to do this equation in something called differential equations. And it was inflow and outflow. And so the rate of inflow vs the rate of outflow determined the internal fluid inside.. so there is a differential equation, you can express it like mathematically to determine the rate of which that will do what it does. OK there's math on the screen, I'm starting to get a little bit more comfortable now. So, the design of the penis is pretty interesting. It's like two balloons that are stacked side by side and you have an input and an output into the system. If you throttle these flow rates you can generate this expanding control volume and that's the erection. Now Dr Ananyev will install these prosthetic devices into men who suffer from ED. It happens to men of all ages by the way. So he decided to demonstrate how this biomechanical system works in the body by just showing us one of these devices. So this prosthesis that you.. This is what you do right? You insert these into the human body right? - It's one of the many things we do. - These are the caverns right? - These are the two cavernosal bodies. When one gets excited, there's an increase in blood flow to both of those bodies. And I will demonstrate it by the virtue of this mechanical pump. - So you've got a hydraulic pump and you're squeezing it. - That's right. - So you're pumping that there, and that's taking fluid from there.. - From the reservoir, which would be your blood stream. To the end organ, which would be the two cavernosal bodies in the penis. - OK, so that's how.. - And then a one way valve that keeps the blood from outflowing. - Gotcha. So once that happens, then.. you know.. sexual activity happens and then.. - You feeling a little uncomfortable Destin? - [laugh] I am a little uncomfortable. You actually deal with uncomfortable situations all day long every day, don't you. - That's my defense mechanism yeah. - That's fantastic. So the outflow, is this?.. You have it in the same valve here, so how does it happen in the human body? - In the human body when a man reaches a climax, certain chemicals are released that are allowing those valves to open. In the case of priapism what'll happen Destin is that you will have an increased blood flow, but instead of climaxing and allowing those one way valves to open and allow the blood flow back out, the blood stays in for a prolonged amount of time as I mentioned about four hours or longer. And when that happens the blood inside these cavernosal bodies becomes what we call ischemic, which means deprived of oxygen, and as it becomes deprived of oxygen and clots it becomes very thick. That in turn makes the problem worse because it's a lot harder for now the thick blood to get out even if the valves were working. - So what do you do? - There are a couple of ways to fix the problem. - Yeah? - You would start off by trying to take a cold shower. I'll see if I can get some more tape for Mr Skeleton - Does it cause permanent damage? Like people can.. - If you do not reverse it within about four hours it can usually lead to irreversible scarring and permanent loss of erection. - Can you die? - Usually.. I have not in my limited experience seen anybody die of priapism but you can definitely suffer. So if the cold shower and then the medications do not work, the next step of the process is to actually drain the engorged blood inside the penis, with a needle. - With a needle? - That's right. - So.. You showed me the two caverns, there's a cavern on each side, so you have to drain them independently? - No you do not. Those caverns communicate, so.. - They have a.. - There is one good thing about this. Yeah usually you'll be able to drain it from one side while the other side spontaneously... - Deflates? Is that the term? - Yep. That would be the term. - How big is that needle? - It's big enough to hurt. A lot of times you would talk to the patient about numbing of the area, but by that time you have to stick them twice, and they're fairly uncomfortable so what you end up having to do is go at approximately mid shaft and stick the needle all the way inside their cavernosal body, and then drain what would have the consistency of tomato paste by that time. - Really? - Or grape jelly. - Does.. Oh my goodness. - You would have to do this multiple times. A lot of times if the blood is really clotted you will end up having to actually remove the clot and then inject sterile salt water in there and then irrigate it back out. Once you irrigate it out, it can come back within 5-10 minutes, and you would actually repeat the process, and for the poor folks in who the condition keeps returning you have to go to more drastic measures. - [nervously] Like? - Like going up in size, and instead of a needle, using a scalpel. Most of the time they would require sedation or sometimes a trip to the emergency room. What you would actually have to drive the scalpel through the head of the penis.. - Are you serious? - And ream it 90 degrees. - Are.. are you being serious right now? - Yeah unfortunately - Really? - Mm hmm. - And so then that fluid would come out that open.. [Heavy breath intake] - It would actually create what we call a shunt by virtue of a big size. That shunt will allow the blood.. - I'm having trouble breathing right now. [laugh] This is bad! - Yeah - So, at that point how do you.. - That's why I hate spiders. - [laugh] Good gracious! Oh man! There's really nothing more to say is there? - No. - So actually in the head? - That's right. - Or is it called the glans? It's called the glans right? - Yes that's the proper name, glans penis. - Glans? So.. Does it.. Obviously there's damage, there's permanent damage because of that. There can, but there's definitely gonna be permanent damage without it. - Last thing, how often do you see this problem? Obviously not from spider bites but.. - Well it depends on the community in which you are in, but we'll probably see it two or three times a year. - So it's pretty rare. - It's fairly rare and you would usually be able to identify one by the risk factors whether it's a predisposing disease like a sickle cell or overdose in medications that help you get to a happy place to begin with. - Oh I see. Well thank you very much for your time, I appreciate it. Yep. Take it easy. OK in summary I hope you don't feel like I was being rude or crude or disrespectful at any point in this. This is a serious issue and I hope I got the information into your brain in a pretty interesting and fun way. Speaking of serious I'm still not working on Fridays for pay, I'm furloughed. So that's a pretty big deal as a dad. So I'm more than happy to tell you about my sponsor. Audible.com/smarter. Audible.com they have audio books and you can go to audible.com/smarter and get a free one. They want me to tell you about a book you can listen to that has something to do with the video, but I don't think we want to hear the word erection one more time if we can avoid it. So, I'm gonna do you one better. Love. There's a book by C.S.Lewis and actually read by C.S.Lewis on audible called The Four Loves. There's one word in english, love. In Greek there's four. There's eros, there's agape, filia and storge. Eros is erotic love, think about the video, but these other three are very interesting. Particularly storge, I didn't know about it. So once I understood the four loves my interaction with people in my life changed. It was very interesting and I think it's good for you to at least explore that. Anyway, audible.com/smarter you get a free audio book. You're smart. You know what's up here. I'm Destin, you're getting Smarter Every Day. Have a good one. OK so how long does it take.. I mean how long will this last? Several years in a man? - That depends on the wear and tear. - [snort] You're awful. - That's not a joke. - I got it. I can't.. I can't do this. [laugh] This... is a tree that grows in the rainforest And it has odd shaped things on it. The end. [ Captions by Andrew Jackson ] captionsbyandrew.wordpress.com Captioning in different languages welcome. Please contact Destin if you can help.
B1 中級 クモ対ペニス - 賢い毎日98 (Spider vs Penis - Smarter Every Day 98) 52 2 簡宇謙 に公開 2021 年 01 月 14 日 シェア シェア 保存 報告 動画の中の単語