We're sunsetting PodQuest on 2025-07-28. Thank you for your support!
Export Podcast Subscriptions
cover of episode Day 11 | 12 Body Parts of Christmas

Day 11 | 12 Body Parts of Christmas

2024/12/22
logo of podcast Dr. Matt and Dr. Mike's Medical Podcast

Dr. Matt and Dr. Mike's Medical Podcast

AI Deep Dive AI Chapters Transcript
People
M
Matt
无足够信息构建一句话概述
Topics
Matt:我将通过一个滑雪事故的故事,来讲解11个身体系统在极端环境下的反应和作用。这个故事并非发生在我身上,而是基于1999年安娜·巴根霍尔姆的真实经历。她是一名瑞典放射科医生,在滑雪时不幸掉入冰冷的河水中,头朝下被困了80分钟,体温降至13摄氏度,但最终奇迹般地生还。我的讲述将围绕这个案例,分析各个身体系统如何协同工作,帮助她在极端条件下生存下来。从皮肤的血管收缩、肌肉的颤抖产热,到心血管系统的血液重新分配、呼吸系统的空气调节,再到内分泌系统的应激反应和免疫系统的潜在抑制,每个系统都发挥了至关重要的作用。此外,我还将探讨低温对身体的影响,以及一些动物如何通过产生“防冻剂”来抵御严寒。希望通过这个故事,让大家更深入地了解身体的奥秘和生命的奇迹。 Matt:首先,当身体浸入冰冷的水中时,皮肤作为第一道防线,会立即感受到寒冷的刺激。神经系统迅速发出信号,促使皮肤血管收缩,以减少热量散失。同时,皮肤上的立毛肌收缩,产生鸡皮疙瘩,试图通过竖起毛发来 trapping 一层空气,起到一定的保温作用。然而,在水中,这种保温效果微乎其微。紧接着,肌肉系统开始发挥作用,身体不由自主地颤抖起来。这种颤抖是一种非自愿的肌肉收缩,通过快速的肌肉运动产生热量,试图提高体温。心血管系统也迅速做出反应,心率加快,血压升高,将血液从身体 periferia 转移到核心区域,以保护重要的器官,如心脏和大脑。呼吸系统则努力调节吸入的空气,使其变得温暖和湿润,以减少对肺部的刺激。虽然在水下呼吸困难,但肺部仍在尽力工作。 Matt:消化系统在此时基本处于停滞状态,因为身体需要将能量集中用于维持生命体征。泌尿系统则可能出现短暂的利尿现象,但随着时间的推移,肾脏功能会逐渐下降,甚至可能发生肾损伤。免疫系统也可能受到抑制,使得身体更容易受到感染。内分泌系统则释放出大量的肾上腺素和皮质醇等应激激素,以提高血糖水平,为身体提供能量。这些激素也可能对心血管系统产生影响,加剧血管收缩和心率加快。在这个过程中,各个系统相互作用,共同维持身体的平衡,试图在极端条件下争取生存的机会。安娜·巴根霍尔姆的生还,不仅是医学上的奇迹,也是对人体强大适应能力的最好证明。

Deep Dive

Chapters
This section contains advertisements for Boost Mobile and Sleep Number.
  • Boost Mobile advertisement.
  • Sleep Number advertisement.

Shownotes Transcript

Translations:
中文

Forever!

After 30 gigabytes, customers may experience slower speeds. Customers will pay $25 a month as long as they remain active on the Boost Unlimited plan. They say opposites attract. That's why the Sleep Number smart bed is the best bed for couples. You can choose what's right for you whenever you like. You like a bed that feels firm but they want soft? Sleep Number does that. You want to sleep cooler while they want to feel warm? Sleep Number does that too.

Why choose a Sleep Number smart bed? So you can choose your ideal comfort on either side. And now save 50% off on the new Sleep Number limited edition smart bed. Limited time exclusively at a Sleep Number store near you. See store or sleepnumber.com for details. Dear old work platform, it's not you, it's us. Actually, it is you. Endless onboarding? Constant IT bottlenecks? We've had enough. We need a platform that just gets us. And to be honest, we've met someone new.

♪♪♪

Welcome everybody to our 12 days of Christmas special edition of Dr. Matt and Dr. Mark's medical podcast. We are on day 11. We're so close to Christmas, Matt. Day 11. Uh,

I'm just looking forward to leaving this studio. Oh, no, it's been a long 11 days. A one, a two, a one, two, three, four. On the 11th day of Chris, that's my true love sent to me. 11 body systems. 10 functions of the liver. 9 abdominal regions. 8 B vitamins. 7 cervical vertebrae. 6 extraocular muscles. 5 layers of skin. 4 heart chambers. 3 ear bones. 2 carotid arteries. And a spleen that is keeping us healthy.

Okay. We've got 11 body systems. You've chosen for 11, 11 body systems. So we're going to go through 11 body systems for Christmas. You need to make 11 body systems relevant for Christmas. How are you going to do that? This takes us back, takes me back to my time as a ski instructor. Right. Okay. Wait, you were a ski instructor. I was. In America. That for some reason is unsurprising. So this particular day. Where, like Colorado? This particular day. Where? New England. Okay. Okay.

Massachusetts? Yes. Oh. So I was skiing this particular day. Makes sense. I was flying down the hill. Okay. Were you very good? I was reasonable. I probably wouldn't be very good. Pizza, french fry? I wouldn't be very good now. That's the way I used to teach it. Really? Wedge or sometimes they wedge or pizza or french fry, beans, straight. So went around a corner, crashed, went into a stream. What? In Tampines.

Into a stream. No, that's a lake. A stream. Like a river. Like a small river. A river? Yeah, so it was frozen over. Ocean. But I went head first into the river. And your legs were just dangling out. That's right. And so I... Like a cartoon. Yeah, that's right. Well, it's hard to see because I wasn't outside my body. I was actually head first in the river or stream. So you could see fishes. I was trapped. It's fishes, correct? Fish is plural? Fish. Fish. Fish.

I think it's fish as if it's more than one species. Exactly. Okay. And because you were in a stream, there are multiple species of fish. There we go. So head underwater. Luckily, I did under the ice. I encountered a big air bubble. What do you mean you encountered a big air bubble? Well, there's a whole lot of air trapped under the ice once where my head was. Oh. So I was able to breathe that, but I couldn't get out. So my-

Legs are down. Head, thorax, underwater, leg out. And so I was trapped there for approximately 80 minutes. 18 minutes? 18. Did you maintain consciousness? An hour and 20 minutes. No, I went into a cardiac arrest. Wow. Yeah, and so then that's what I remember. So I was transported to hospital. Luckily, I had some doctor friends that were...

On scene. On slope. On slope. So they tried CPR, called the paramedics, flew in, took me to hospital where for the next, I don't know, 24 hours, let's say, a hundred odd medical staff worked on me. Sorry, say that again? A hundred odd medical staff worked on you? Yeah.

Did they know who you were? Did they think that you were somebody else? So I was put onto a heart-lung bypass machine. I was warmed up and...

Miraculously, I came to and survived. And I'm here to live this day and tell you the story. Wow. Now, I'm going to walk through this story with you and tell you what my 11 body systems were doing. Sure. All of them. I'll do my best. Okay. Actually, should I go through the 11 body systems first? Great idea. 11. Here we go. In no particular order. Yeah. Okay.

On the earth. Okay. Number one, integumentary system. Skin. Also known as skin. I'll give the colloquial term. Thank you very much. Scleetal system. Bones. And joints. Three, muscular system. Muscles. Good. Four, nervous system. Brain and nerves. Five, endocrine. Hormones and glands. Six, cardiovascular. Blood and heart. And vessels. Very good. Seven, respiratory. Lungs and breathing. Okay.

Anyway. Yeah. Eight, digestive. Poo. Eating, swallowing. It's too much. Nine, urinary. Kidneys, bladder, ureters, urethra. Ten is... You've got to make me guess it. Immune. Yeah, immune. Okay. That's all you're saying? Immune system. Okay. And then 11, reproductive. And that's...

Reproduce... Offspring. Producing... The band? The band? Gammicks. Fight for a white guy. Did you say lymphatic? That's immune. Oh, okay. Okay, so...

The first thing that I noticed being underwater. Let me guess. It was cold. It was cold. Yeah, that's good. So that's probably a combination of nervous system. So it's saying, ooh, this is chilly. We need to try to deal with this. You were calm. But the integumentary system was probably the first system that really kicked in to try to deal with this extreme temperature. How so? So the skin, what it does when it's usually at...

a colder temperature. It will try to retain heat. Well, I guess the cardiovascular system is shunting blood away from it. So that would be a combination of cardiovascular. So vasoconstriction to the skin, that's why you go wide. Yeah. But I'm trying to produce or hold on to temperature or heat with my body. So I produce what we call goosebumps. Yep. And that's like little muscles at the end of the base of the hair, which makes them stand on end and trap air. Erectile pili.

Trap air in my skin. Yeah. Now, so that was one of the first things I encountered. That's a bit pointless because you're in water. That's right. Okay. So it did it anyway. That's right. So I am losing a lot of heat through conduction. Yes. Into the water. Yeah. Then my muscular system kicks in and I start shivering. Yeah. Do you need muscles to do that? Okay. Yes. So the muscle. So your arms weren't really doing much. Yeah.

With Boost Mobile. Forever!

After 30 gigabytes, customers may experience slower speeds. Customers will pay $25 a month as long as they remain active on the Boost Unlimited plan. If you're a facilities manager at a university, you know students rely on the cafeteria for breakfast, lunch, dinner, and the occasional late night snack. So when a dishwasher breaks down and dirty plates pile up, the mess hall can turn messy in the blink of an eye. Enter Grainger.

With over a million industrial-grade products and fast delivery, the product you need now is never far away. So you can turn that dishwasher back into a lean, clean washing machine. Call, click ranger.com or just stop by. Ranger, for the ones who get it done. So I was producing quite a lot of involuntary muscle contractions. Okay. And that is generating heat.

And that heat is warming blood, which is hopefully shunting away from the external, the periphery, and keeping more centrally. Okay. So this would then be the cardiovascular. My heart rate's going up to trying to deal with this. And muscle. Okay, muscle. And my breathing. It's going to be difficult underwater. Yeah. But... You had a little bubble. I had a little bubble. What my respiratory system is doing with...

So when you're in cold temperature and what your respiratory system is trying to do is air condition. Okay. Because your lungs do not like cold, dry air. No. They like warm, moist air. That's right. So what you usually find when you are in a colder environment, not with your head underwater, is your nose runs. Now, the reason for that is it's trying to moisten the air as it's coming in. Did your nose run? Well, as I said, I was underwater, so it's hard to tell. Okay. But...

But, I mean, that side of things is probably okay, but the temperature not as good. Yeah. That's probably – do you cough when you encounter cold temperature? No. No? No. What about if you're exercising in, like, the middle of winter? I usually cough. Do you? Yeah. Maybe because it's a bit dry and it irritates the airways. And because you're getting a lot down into the deeper depths and it has less time to – What about when you do a diver's reflex? Don't you have an automatic gasp?

Isn't that the first thing that happens for a diver's reflex? Maybe. That's why some people drown if they hop into cold water because they might reflexively gasp. Oh, like they're submerged? Yeah. Okay, I'm not sure about that. Okay, so you've done a couple of systems there. Anything else happening? So cardiovascular is vasoconstricting, heart rate's up, blood pressure's up. What's happening with your reproductive system? Second belly button.

So, got a second belly button, which means, oh, so the detrusor muscle has been activated, but also the cremaster reflex. So it's pulling the gonads right back into the body. So that's the second belly button. So we've done digestive, I would say, not a great deal. Okay, okay. Digestive system, not doing a great deal here.

No, no. Unless you're able to catch a fish. Again, blood shunted away. Yeah. So you're not really getting a great deal of blood flow to the digestive system, which is probably a good thing you need to retain that. Urinary system. Now, early on, you do get a degree of diuresis. So cold-induced. So you do do a pee. Oh. Okay. They'll try and warm you up, I suppose. Yeah.

Yeah, sometimes surfers will say they do that in their wetsuit. I'm not sure how true that is. But I have heard them say that. Yeah, I wouldn't be surprised. But then you will be, as the shunting continues and you're going to probably more like a shock state, you would be shunting blood away from your kidneys and you're probably more likely to get kidney failure or kidney injury. Yeah. So that would be an issue. Immune system. Well, actually...

A little bit of evidence to suggest cold air does diminish your innate respiratory tract immune function. So, you know, the old wise tale, and that's probably not the correct term to use anymore, but to keep...

You're going to get sick. Oh, yeah, you catch a cold in the winter. Yeah, yeah. So there's possibly a little bit of truth to that, that when you are exposed to cold air and so forth, you will get a degree of, you know, the blood flow to your area, but also the way that the innate respiratory tract is dealing with the temperature is not making you as proficient with your immune response.

The last one is my endocrine. Yeah. So very high stress response, lots of adrenaline, lots of cortisol, which is pumping out for one, a lot of glucose. Now, here's a side point here. Okay. There are some animals that are exposed to extreme cold temperatures that can basically freeze but still live. Now, the main concern with...

live in organisms when you freeze is because... We're filled with water. Yeah. And water expands when it's cold. Yeah. So the water expands so much that it bursts the cells that the water is contained within. That's right. And then you burst the cells, you're gone. And I think also the crystals...

Can just damage stuff. Yeah. Okay. So with these animals, they can produce almost like a syrupy-like antifreeze, which protects them in really cold temperatures. So if you want to freeze yourself, just maple syrup yourself. Yeah. And like in the – well, it's not too –

Explain. Well, in the lab, when we do histology and we want to process certain biological tissues, some of the- What do you mean by process? You mean cut up and slice and look at it? And then stain, yeah. Some of the approach that we use sometimes is called cryostatin. Yeah. And we cut the tissue using the tissue being frozen like a block and you cut it with a really thin knife.

But to protect the tissue from freezing at negative 80, you place it in a sucrose syrup. Right. And that protects the cells bursting. Oh, okay. So you're saying these animals fill their blood with sucrose? Well, maybe not quite sugar, but something along those lines that protect it.

So is that what happened to you? You were lucky that you had a liter of Coke and six donuts. That's right. That you were able to use that as antifreeze. Exactly right. So you can see that my survival here...

Utilizing my lever body systems is what kept me alive. That's great. As well as the 100 health professionals in the hospital. Now- Yeah, I wonder which one it was, but yeah. Now, obviously this was not me. Oh, I knew it. However- You're lying. This was a true story that happened in 1999 with Anna Bargenholm. Definitely haven't pronounced that one correctly. She was a 29-

year old Swedish radiologist, which I think she was wanting to specialize into orthopedic surgery. And the exact thing happened. She was skiing, went into a river. Head first. Head first. Legs down. 80 minutes underwater. All those things happened. And survived. And survived. I think her temperature got down to 13 degrees. Her actual core temperature. Her actual core temperature. From 37 to 13. That's right. And she survived. Took a little while to recover, but she recovered pretty much immediately.

Maybe with a bit of neuropathy, but otherwise. Can I just say, Matt, it took you every single one of your 12 Days of Christmas topics to end on a happy note. So congratulations. Yes. And that was the 11th Day of Christmas, the 11 Body Systems.

Get unlimited talk, text, and data for just $25 a month with Boost Mobile forever.

After 30 gigabytes, customers may experience slower speeds. Customers will pay $25 a month as long as they remain active on the Boost Unlimited plan. Hi, I'm Raj Punjabi from HuffPost. And I'm Noah Michelson, also from HuffPost. And we're the hosts of Am I Doing It Wrong? A new podcast that explores the all-too-human anxieties we have about trying to get our lives right. Each week on the podcast, Raj and I pick a new topic that we want to understand better and bring a guest expert on to talk us through how to get it right.

And we're talking like legit, credible experts. Doctors, PhDs, all around superheroes. From HuffPost and Acast Studios, check out Am I Doing It Wrong? wherever you get your podcasts.

It's Kelly Clarkson here to talk all things Wayfair, the best place to buy furniture, decor, and anything else you can think of to create a home you absolutely love. I know when I shop with Wayfair, I find options for every style, whether I'm feeling boho or farmhouse, modern, traditional, French country. I can find exactly what I need for my home and more. No matter your space, style, or budget, shopwayfair.com to make your home way more you.