What is emphysema? | Respiratory system diseases | NCLEX-RN | Khan Academy

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  • เผยแพร่เมื่อ 8 ก.ย. 2024

ความคิดเห็น • 96

  • @lduranceau8046
    @lduranceau8046 5 ปีที่แล้ว +39

    You took something very complicated and simplified it in a way we can all understand. Thank you for the superb effort.

  • @emartinsful
    @emartinsful 8 ปีที่แล้ว +13

    You are so good!!!
    I just love you
    Thank you so much

  • @lizshea4434
    @lizshea4434 3 ปีที่แล้ว +1

    Thank you so much! I dont know if it was your charismatic voice or just how you explained it with your similes , or both, but I really enjoyed this and didn't fall asleep! I kid you not I watch the one with the male and I fell asleep!

  • @CB77771
    @CB77771 ปีที่แล้ว +2

    Thank you for this explanation. I have been recently diagnosed with emphysema from nearly 50 years of heavy smoking. This video helped me understand the damage I have done to my lungs and why I feel myself breathing but don't feel like I'm getting any air. I am suffocating, slowly. And it makes me sad that it is totally self-inflicted because I just wasn't strong enough to stop. Don't smoke...it really is slow-motion suicide. .

  • @citytalkwithDJTOR3LL
    @citytalkwithDJTOR3LL 3 ปีที่แล้ว +9

    Why is it so hard to find this kind of Instructors in Medical school, hmmm??? 🤔🤔🤔

    • @ioioioiooioioi
      @ioioioiooioioi 3 ปีที่แล้ว +2

      Professors are underpaid + burntout

  • @mendz1231
    @mendz1231 10 ปีที่แล้ว +10

    Love your voice, thank you for t his

  • @leonardpiercy9837
    @leonardpiercy9837 4 ปีที่แล้ว +2

    I was taken to hospital six months ago with chest pains and diagnosed with emphysema, sarcoidosis and pneumonia. Been in hospital 5 times since with it all and they have told me to expect to need hospitalization every winter from now on. Whatched this video, can't believe that's what's going on inside me. Horrifying. And even more horrifying are my odds of pulling through if I catch the Covid-19 virus.
    I started smoking at 11 (older boys at army cadets got me into it) and stopped at 36. I'm now 39 and there are 80 year olds who are fitter than I am. I can't even transfer my laundry from the basket to the washing machine without needing to stop for a breather afterwards.
    DON'T SMOKE!

  • @Iherbalessence69
    @Iherbalessence69 9 ปีที่แล้ว +41

    Actually theyre pink because of polycythemia , which means excessive erythrocytes(red blood cells). Their bodies make more because of chronic hypoxia

    • @MrSmarty39
      @MrSmarty39 7 ปีที่แล้ว

      666 Horsepower b

    • @quon535
      @quon535 4 ปีที่แล้ว +7

      666 Horsepower same thing she’s saying... she just watered it down. calm down smarty pants

    • @heeram9587
      @heeram9587 4 ปีที่แล้ว +1

      666 Horsepower calm down smartypants

    • @natiteshe1108
      @natiteshe1108 3 ปีที่แล้ว

      What's chronic hypoxia

  • @aeyannalucero902
    @aeyannalucero902 3 ปีที่แล้ว +1

    that. was . SOLID. THANK YOU!

  • @iqrashaikh8829
    @iqrashaikh8829 7 ปีที่แล้ว +6

    Just wanna add, pursed lip breathing occurs only during expiration because in emphysema, this is only expiration which is difficult and labored due to loss of recoil!

    • @quon535
      @quon535 4 ปีที่แล้ว

      Laiba Shaikh relax... she’s just watering it down to make it understandable

  • @miguelsampaiopeliteiro1634
    @miguelsampaiopeliteiro1634 7 ปีที่แล้ว +1

    In fact, yes there is hyperinflation of the lungs in order to breathe but pacients are asthenic, as showed in the Netter book. They end up being skinny, and not barrel-like (these would be the blue boaters - chronic bronchitis).

    • @fbnflaviusbroadcastingnetw6786
      @fbnflaviusbroadcastingnetw6786 5 ปีที่แล้ว

      Miguel Sampaio Peliteiro yes they become skinny.. because not enough oxygen, and build up off both carbon dioxide and fluid which begins to form in the lungs. As the disease worsens these poor people end up slowly suffocating to death. What makes matters worse is both fluid buildup and carbon dioxide can start seeping into the body and bloodstream.

  • @zobius9191
    @zobius9191 3 ปีที่แล้ว +1

    I fucking hate this disease.. My grandfather smoked his whole life and it took him from me, today I got a text from my father, and now he has it from smoking.. I just want to cry..

  • @notreally5255
    @notreally5255 3 ปีที่แล้ว +3

    me: *toddler voice* thanksssss

  • @mattdenney8437
    @mattdenney8437 5 ปีที่แล้ว +1

    Great job. Thanks.

  • @pouyabandegi9272
    @pouyabandegi9272 9 ปีที่แล้ว +2

    Very well done!

  • @amirnehme4803
    @amirnehme4803 8 ปีที่แล้ว +1

    Thank you.

  • @heidiclayman4587
    @heidiclayman4587 ปีที่แล้ว

    What about surfactant? Doesn't emphysema damage surfactant, causing some of the alveoli to collapse? Thank you!

  • @obadiahgoji3437
    @obadiahgoji3437 ปีที่แล้ว

    This is so lovely. I love Khanacademy videos. Can you also make a video on Liver Biochemistry ?

  • @oldguysrock2170
    @oldguysrock2170 5 ปีที่แล้ว +6

    My 72 year old mother in law has been diagnosed with emphysema. She is a smoker and is in denial and refuses to stop smoking. In just a few months, her energy level has diminished tremendously. She had a very high pitched dry smokers cough for years, but the cough has changed to a deep liquid phlegm filled cough. She is out of breath all the time and is becoming less active for obvious reasons. Because she is in denial, treatments like using oxygen, are not an option because she refuses to use it. Sad, yes! Frustration watching her health deteriorate. But watching the stages of her cough change and constantly being out of breath and having to lean on counters to catch her breath, is a study in how fast the emphysema is attacking her body. Her doc gave her 3 years a year ago. I figure that is about right.

    • @thomashigginsmusic
      @thomashigginsmusic 4 ปีที่แล้ว

      906 Sparky going through the same thing with my mom right now and she’s 52.. hope all is well sparky

    • @michealcollins5650
      @michealcollins5650 3 ปีที่แล้ว

      Earlier Last year I was diagnosed with emphysema in 2019 and I have tried everything I could to heal myself, but it was all to no avail, until I saw a post on a health forum this herbalist through his email and he prepared me a herbal cure for emphysema and sent it to me via the delivery service of UPS from the company, when I received this herbal cure. They gave me step by step instructions on how to apply it, when I applied it according to the instructions I was totally cured of this deadly disease within 5 months of use, I am nowemphysema free, all thanks to Dr. Timothy You can also contact this great herbalist for help by email: timothydouglas3612@gmail.com or contact Dr. Timothy through his whatsapp number: +1(239) 977-4390 He is also specialize in treating all kinds of diseases, VIRUS HERPES , HEPATITIS B, CANCER, BRAIN DISEASE, INFERTILITY, DIABETES EPILEPSY AND MORE ...... He will also be of help to you

  • @IglooDweller
    @IglooDweller 8 ปีที่แล้ว +2

    I don't fully understand the door metaphor at the end around 9:37. Is this right?:
    - The healthy lungs' door is always open (good)
    - The unhealthy lungs' door is prone to closing, but less likely to "slam shut" if you inhale slowly (and a closed door is bad)
    ?

    • @MathewClarkWheeler
      @MathewClarkWheeler 8 ปีที่แล้ว

      As far as I understand, yes, door closing is bad because it means lung volume is decreases and door 'closes' because elastin which is keeping the metaphorical door open has been destroyed so the door is prone to closing

    • @stank023
      @stank023 8 ปีที่แล้ว +4

      A bit late on the reply, but imagine that the elastin in the bronchioles is similar to a door stop in this example. If the door stop is present(ie elastin in a healthy individual), the door(bronchiole wall) will not slam shut no matter how much air rushes out of the room(alveoli).
      If the doorstop is gone(lack of elastin in emphysema), when air leaves the room(alveoli) quickly, it will cause the door(bronchiole wall) to slam shut. If the air leaves the room slowly, however, it will not cause the door to close as fast, if at all.
      You can inhale as fast as you want with emphysema(as the door will be blown open, which is desirable), it is the exhalation that should be slow in order to prevent the door from being closed, which leads to air being trapped in the alveoli.

    • @fbnflaviusbroadcastingnetw6786
      @fbnflaviusbroadcastingnetw6786 5 ปีที่แล้ว

      IglooDweller the lungs exhale not so much do to the chest but more of chemicals which are released making the lungs exhale. The building up of fluid and carbon dioxide are what makes matters worse. The diaphragm expands but as what she says here gets toughened up, but the lungs even more.. from years of smoking or bad air as in mold or fiberglass or pollution particles in the air. So what is inhaled can’t properly be exhaled sufficiently, thus causing emphysema in the first place!

  • @Dd-zd9nj
    @Dd-zd9nj ปีที่แล้ว

    Very amazing explanation ❤ thank you

  • @emphysemabootcamp3599
    @emphysemabootcamp3599 8 ปีที่แล้ว +1

    Good explanation.

  • @munkboyaviation
    @munkboyaviation 9 ปีที่แล้ว +2

    Brilliant!

  • @moristhetiger
    @moristhetiger 6 ปีที่แล้ว +2

    I think it becomes barrel shaped as the person has to continuously use his thorasic muscles. so the anterior diameter gets increased and that is exactly what barrel shaped chest is. Also I have heard that the diaphragm becomes flattened.
    Pursed lips
    When the velocity of air increases the pressure gets decreased when learnt this in physics as the roof of the houses would fly away in severe storm as the pressure would get decreased outside and the pressure inside the house would remain same the roof would be pushed towards lower pressure and it would just fly away.
    What happens here is that the person has expire slowly so air doesn't rush out really fast and the decreased pressure lets the bronchioles collapse. so the person purses his mouth and breathes out through a rather small opening.
    If you dont want to worry about physics just keep in mind that in all obstructive lung diseases expiration is tough so the person wants to expires really slowly.
    Why is it more difficult to expire in obstructive lung disorders and inspiration is rather easy?
    as during expiration chest squeeze in and further compress the airways so the persons wants to make the expire really nice and slow.
    but while inspiration the chest increses in size so the obstruction is less of a problem?

    • @quon535
      @quon535 4 ปีที่แล้ว

      Syed Moris lmao she said all of this...

  • @brennancumberbatch1571
    @brennancumberbatch1571 4 ปีที่แล้ว

    A very well done vid...I learned alot. Much thanks

  • @spiritualgrowth6552
    @spiritualgrowth6552 ปีที่แล้ว

    Damn, you are amazing. Thank you!

  • @oishi5518
    @oishi5518 4 ปีที่แล้ว

    great video,very helpful..

  • @Abdullah.Al-Haj
    @Abdullah.Al-Haj 7 ปีที่แล้ว +1

    What is bulla or bleb in the lung and how is it related to emphysema?

    • @hottearsmz3993
      @hottearsmz3993 7 ปีที่แล้ว

      a bleb or bullae (large bleb) is a closed-off area of air in the pleural tissue, the very thin-walled area of the lungs near the diffusion sites.. this can happen with emphysema as the passages collapse upon expiration. if they rupture the wrong way they can cause a pnuemothorax

  • @kanikamanchanda6136
    @kanikamanchanda6136 6 ปีที่แล้ว +1

    Thank you! SO helpful

  • @vjw5612
    @vjw5612 5 ปีที่แล้ว +1

    Thank you. Your drawings are excellent!

  • @delacrvz
    @delacrvz 4 ปีที่แล้ว

    Perfect

  • @Tysonbax
    @Tysonbax 8 ปีที่แล้ว

    I'm 25 years old and i've been to the doctors about 20 times in relation to my breathing problems and not 1 of those times did any of those doctors think of Emphysema, i gave them these exact symptoms and not 1 of them tried testing for it, Ever since i was 6 years old i thought i was being weak because i wasn't trying hard enough to breath, when i would run marathons i would think i wasn't trying hard enough and that everyone went through what i went through with not being able to breath and feeling like i was going to die.
    Detection of Emphysema needs to be enforced because this has plagued me in my life for so long.

    • @jbmonopoly
      @jbmonopoly 8 ปีที่แล้ว +1

      Bestof Anime
      It would be unusual for someone so young to have already developed emphysema. If you do not have a significant smoking history or chemical or second hand smoke exposure then it's actually impossible to develop emphysema.
      Have you ever performed a pulmonary function test?

    • @jbmonopoly
      @jbmonopoly 8 ปีที่แล้ว +2

      Bestof Anime More likely explanations for your signs and symptoms would be Asthma or Alpha-1 Antitrypsin Deficiency.

    • @siobhanslife9123
      @siobhanslife9123 7 ปีที่แล้ว +2

      its not right of the doctors not to test u they should my 19 year old brother died of it they kept saying it was asthma but turned out to be emphysema

    • @jbmonopoly
      @jbmonopoly 7 ปีที่แล้ว

      SIOBHAN CHANNEL I'm very sorry to hear about your brother, it is very unfortunate that you lost him at such a young age.
      However, it is very unlikely that your 19 year old brother died from emphysema. Perhaps it was complications from an empyema or more likely, a pulmonary embolism?
      I can almost guarantee that the doctor did have your brother perform a PFT or at the very least handheld spirometry to give him a diagnosis of asthma. They'd almost have to, for insurance purposes, and it would have told them if they were dealing with asthma or emphysema.
      If your brother really did have life threatening emphysema, the only thing the doctor could have done differently to change the outcome would have been to place him on a wait-list for a lung donation. Assuming he did find a donor, it probably would have only extended his life a few more years, because if he had advance stage emphysema at 19, then he no doubt had several other severe co-morbidities that would have ended his life if emphysema hadn't.

    • @fbnflaviusbroadcastingnetw6786
      @fbnflaviusbroadcastingnetw6786 5 ปีที่แล้ว

      Bestof Anime True! I wish doctors were thorough and not egotistical “what do you know!?” Uh.. it’s your body! You should know! They don’t listen? Go somewhere else! I’m sick of doctors not being thorough nor upfront with patients.. like they’re supposed to be!

  • @LucasSilva-kv3km
    @LucasSilva-kv3km 4 ปีที่แล้ว

    Good video

  • @dineshraja7121
    @dineshraja7121 6 ปีที่แล้ว +1

    Thank you:)

  • @spiderbruh7176
    @spiderbruh7176 4 ปีที่แล้ว

    Emphezema water pik cleansing of lungs enter through body like cleansing of colon

  • @trevorjohnpatrickwalker
    @trevorjohnpatrickwalker ปีที่แล้ว

    What is capnia ? Copd

  • @no0oniindependent968
    @no0oniindependent968 9 ปีที่แล้ว

    Thanx alot

  • @christopherlozano7536
    @christopherlozano7536 9 ปีที่แล้ว +3

    you said there are only 2.5 million alveoli, but that wrong by at least two orders of magnitude. Isn't it more like 250 million alveoli per primary lobule?

  • @stephenfiore9960
    @stephenfiore9960 7 ปีที่แล้ว +1

    .......... Excellent.......... (assuming your telling the real story.....).....

  • @heeram9587
    @heeram9587 4 ปีที่แล้ว +1

    2020 anyone hello

  • @depressedessendonfan5702
    @depressedessendonfan5702 4 ปีที่แล้ว

    this is terrifying

  • @xx294
    @xx294 8 ปีที่แล้ว +3

    Chronic doesn't mean it happens over a long period of time. Chronic means the disease isn't temporary but permanent. A bronchitis is just a seasonal disease that usually goes away in a few days. A chronic bronchitis stays for life.

    • @fbnflaviusbroadcastingnetw6786
      @fbnflaviusbroadcastingnetw6786 5 ปีที่แล้ว

      Lionel X chronic means it’s constant. But emphysema is progressive and though in a later stage can’t be reversed.. that’s why like cancer you get help quickly!

    • @dc.pentrumesteri4893
      @dc.pentrumesteri4893 2 ปีที่แล้ว

      @@fbnflaviusbroadcastingnetw6786 da este mai rău decât cancerele

  • @oc4026
    @oc4026 7 ปีที่แล้ว +3

    Video is OK, but you seem to go off on tangents talking about irrelative things, such as inspiratory drive.

  • @Hex-Mas
    @Hex-Mas 4 ปีที่แล้ว

    Why all these videos talking about emphysema are Bob Ross videos?
    I don't have a issue just find it strange.

  • @sureshchoudhary2260
    @sureshchoudhary2260 6 ปีที่แล้ว

    Please don't use black background it's irritated

  • @user-bn4kf7fh1y
    @user-bn4kf7fh1y 5 ปีที่แล้ว

    Nice video horny voice

  • @varsakoglu
    @varsakoglu 4 ปีที่แล้ว

    very very bad explained.