The vestibular system, balance, and dizziness | Processing the Environment | MCAT | Khan Academy

Поділитися
Вставка
  • Опубліковано 13 січ 2025

КОМЕНТАРІ • 134

  • @luzcastro2258
    @luzcastro2258 4 роки тому +49

    i found so endering the way the narrator got so excited while explaining everything. Thaks for the video.

  • @SlightlySaturated
    @SlightlySaturated 7 років тому +371

    I don't understand why Khan Academy can explain this concept in less than 10 minutes while my professor needs 2 hours.

    • @qureshiiiii
      @qureshiiiii 6 років тому +19

      No dude, it's because there is a lot more detail involved for them to test us on...

    • @cheycollective
      @cheycollective 6 років тому +25

      This is an overview and actual class is more detailed

    • @hildagraham5846
      @hildagraham5846 6 років тому +2

      I started getting vertigo about seven years ago, it just hit me outta the blue! Then I started getting anxiety from it. It seems like the anxiety just caused the vertigo to get worse. It became a vicious cycle. My doc gave me medicine but it didn’t always work, sometimes it made it worse. I had a CT scan of me head, which was normal. I had an MRI and nothing showed up. And I saw an ENT who didn’t believe that it was coming from my ears. Nobody could tell me what was wrong with me, and I was really starting to get very worried that it would never go away. Then I found heron program . I admit I was worried it was a scam but I was so desperate that I took the chance and I am glad I did! I felt the difference the very first day. Two days later I could walk almost normally again. And now I never have the spinning feeling in my head any more. Amazing! for more information about this program, click here HootDizzy.xyz

    • @bilalafridi324
      @bilalafridi324 5 років тому +4

      Hilda Graham hahahaha lol great marketing skills

    • @Boringpotsnpans
      @Boringpotsnpans 5 років тому +2

      SlightlySaturated lectures are the worst. Just let me read and watch UA-cam, I’ll come in and take the test.

  • @annehogan4179
    @annehogan4179 5 років тому +17

    Great resource for student! Please do note some slight errors. First, at 2:24. The Semi-Circular canals do NOT line up with the anatomical planes, as described. They are tilted up approximately 20-30 degrees, and with the HSCC (lateral canal) following Reid's Baseline, which is a line you can draw from the edge of your tragus (notch on the outer ear that you can use to plug the canal) to the lateral canthus (edge of the eye). Second: 2:58. "Otolithis" have a hard "O" for the initial "o" (and does not sound like "auto-lith", but rather like "o-toe-lith"), in medical communities in the U.S., at least. Note these are just slight things I would want my students to know. :) Again, great resource. Thanks!

  • @zeldaexpee1273
    @zeldaexpee1273 9 років тому +59

    bruh, i've been spinning in the opposite direction for years to get rid of dizzyness, but i just thought it was psychosomatic. I never realized that there was an actual scientific explanation for it.

  • @penguins8913
    @penguins8913 10 років тому +58

    Exceptionally well made video. Nice and simple, terrific drawings! Thank you!

    • @karnolverd4872
      @karnolverd4872 7 років тому

      *_Choosing wrong stuff and losing money is a quite common scenario in binary options. Here lies the real risk factor with binary options trading. But you can avoid this sort of miseries easily. Just follow what others are doing to get the success. Using binary options trading app like this==>>( _**_t.co/I8R407uu2J_**_ ) can secure safety of your investment and make bigger profit. In this case, you are totally out of risk, even if you don't decide a single trade with "put" or "call"._*

  • @callmearmstrong
    @callmearmstrong 5 років тому +4

    Thank you so much for this video. I really am trying to understand THAT area, since mine got destroyed by a tumor. THANK YOU for making this easy to understand!

  • @gunarscakste270
    @gunarscakste270 4 роки тому +10

    To me this shows the awesome design from a most wonderful Creator!

    • @WaniBilal-ul6db
      @WaniBilal-ul6db 6 місяців тому

      This design can not happen on its own.actually the creator is truly perfect.

    • @sahasmahogha6399
      @sahasmahogha6399 5 місяців тому

      @@WaniBilal-ul6db You are calling the vestibular system perfect in the face of imperfections. That is blasphemy in the face of the "perfect" creator.

  • @ThePonderingObserver
    @ThePonderingObserver 5 років тому +6

    I REALLY enjoyed this. Every minute too.

  • @roxblue5
    @roxblue5 9 років тому +13

    Really great, thank you. Is there a part two of this though?

  • @alsh123am3
    @alsh123am3 9 років тому +11

    You are so brilliant!!!! I thank you very much

  • @ByeByeBoog
    @ByeByeBoog 5 років тому +2

    That Little Stunt You Pulled At 3:44, Leaving That Bit Of Writing UnErased. Yeah, It Was Bugging Me.

  • @PreetKaur-fk3ds
    @PreetKaur-fk3ds 8 років тому +5

    Thanks for making all the content easier. very well explained.

  • @kevinmoore2501
    @kevinmoore2501 5 років тому +1

    Great info, and video. Helps me understand how my balance works now, given that my other balance systems have been understandably, and effectively destroyed, due to Neuro-Surgery for a pontine glioma (Ependymoma superior, and proximal to my brain stem), as well as an HAI (hospital acquired infection) of Serratia meningitis.

  • @rahulkrishna7256
    @rahulkrishna7256 3 роки тому +1

    Thank you very much. You explained it in a clear, precise and engaging way. Thanks a lot.👍

  • @ShadowlessBeing
    @ShadowlessBeing 9 років тому +4

    Awesome video! Thanks!

  • @Joe-gu6oe
    @Joe-gu6oe 8 років тому +1

    I suspect nerve ending misfires to be one of the culprits of PTSD and my GAD. I learned a lot at the Hough Ear Institute. Their meds didn't work well but, psychiatric meds have me sudden panic free.

  • @ahmadti
    @ahmadti 7 років тому +26

    04:26 who else get emotional when she gets emotional about the crystals (:

  • @HafizahHoshni
    @HafizahHoshni 8 років тому +4

    thanks a lot for the clear explanation!! 😀

  • @unknownlove19
    @unknownlove19 9 років тому +9

    you're a joy to listen to!!! thanks for the great review :)

  • @fungustmaster
    @fungustmaster 6 років тому +1

    the human body is such an engineering perfection by nature, so simple but also so complicated

  • @saiaishwaryav5585
    @saiaishwaryav5585 9 років тому +3

    thanks a lot! made my life much easier :)

  • @sarahatebalucienne4419
    @sarahatebalucienne4419 3 роки тому +1

    So nice but for me it's like a Télétoon with those drawings

  • @humaralone1677
    @humaralone1677 Рік тому +1

    Thanks khan academy

  • @Stanford_iDATA
    @Stanford_iDATA 4 роки тому +1

    After training, dizziness can be overcomed, astronauts can spin more than nermal people.
    In this case, the endolymph must still be moving, then what could be the mechanism of this resistance to dizziness?

    • @arocks1234567
      @arocks1234567 3 роки тому

      adaptation, maybe it thickens itself or maybe its adjusted at the perception stage where it downreulates whatever stimuli, maybe we just more fast adjapting receptors instead of slow adapting or non adapting

  • @zhiwareskandari3421
    @zhiwareskandari3421 9 років тому +2

    Thank you so much. Bless!

  • @ka6091
    @ka6091 5 років тому

    nice drawing and concise explanation, gotta love Khan Academy

  • @abhinanini
    @abhinanini 8 років тому +3

    well explained videos!!

  • @TuyishimeaudrePrince
    @TuyishimeaudrePrince 6 років тому

    u explain it so well...it's really understandable! much thx

  • @antikimchi1
    @antikimchi1 9 років тому +3

    thank you so much!! The explanations were so easy to understand great use with examples and drawings!

  • @luckydesilva6733
    @luckydesilva6733 6 років тому

    Great video. Thank you so much as always. Respect .

  • @meaganzitnyar7689
    @meaganzitnyar7689 7 років тому

    very well explained and easy to follow. Thank you!

  • @aribidounia4632
    @aribidounia4632 7 років тому

    شكرًا جزيلا thank you so much

  • @lorene1782
    @lorene1782 5 років тому

    Brilliant explanation. Thank you!

  • @jennazhang4927
    @jennazhang4927 9 років тому +3

    That's so awesome!

  • @ihechimereonuoha8066
    @ihechimereonuoha8066 Рік тому

    What you explained about dizziness, can it also apply to one who just came off a lift (elevator)?

  • @vaishalivignesh3963
    @vaishalivignesh3963 7 років тому

    Wow nice video...thanks!!

  • @abdomohamed-mu2ox
    @abdomohamed-mu2ox 9 років тому +4

    nice drawings :D

  • @GurpreetKaur-rc4uo
    @GurpreetKaur-rc4uo 7 років тому +3

    is there any medication for off balance system

  • @aqualife88
    @aqualife88 2 роки тому

    Not me spinning around my living room 😂😂😂

  • @Young_Jettro
    @Young_Jettro 7 років тому

    There is so much science.

  • @kassi4837
    @kassi4837 6 років тому

    :-) Dear Khan academy, can you do you one on peripheral vestibulopathy please?

  • @aquamarine3699
    @aquamarine3699 4 роки тому

    Thank you!

  • @TheMirrorEdges
    @TheMirrorEdges 7 років тому +1

    I'd love to know what program is used to create the presentation, thx in advance:)

  • @ariffbasri
    @ariffbasri 3 роки тому

    Well done

  • @williamhicks9752
    @williamhicks9752 8 років тому

    so in bppv are the crystals from the otolithic organs? If so how are they causing dizziness in the SC canals? Are there hair cells in the SC canals? thanks

    • @teenixxy
      @teenixxy 8 років тому +1

      I believe BPPV results when crystals have been misplaced from the otolithic organs. That is why treatment includes particle repositioning manoeuvres, such as the Epley's manoeuvre.

  • @stephenireland3816
    @stephenireland3816 4 роки тому +3

    It’s amazing the me that with the jump in medical science people still believe this all happened by random chance not by intelligent design!

  • @lisaquinlivan4419
    @lisaquinlivan4419 2 роки тому

    Love video but how can I keep crystals from moving in wrong direction to stop vertigo?

  • @kimuliroderick463
    @kimuliroderick463 4 роки тому +1

    Good

  • @alihusam894
    @alihusam894 9 років тому +3

    the way she talks reminds me someone

  • @MohamedAshraf-fw1dc
    @MohamedAshraf-fw1dc 3 роки тому

    Disoriented diver: Guys I gotta head back up
    The Guys: You’re actually going down
    Disoriented diver: My bad
    The Guys: Now you’re going towards your right, not up, nor down
    Disoriented diver: thanks, heading back up...nnnow
    The Guys: You’re currently moving diagonally downwards
    Disoriented Diver: What IS this “up” anyways ?!

  • @seth.4
    @seth.4 9 місяців тому

    i need to see these carbonated crystals

  • @mrsgarcia7324
    @mrsgarcia7324 7 років тому

    What is Loss of Inner ear vestibular balance sensitivity in both ears? Almost a complete loss..

  • @euniceaa
    @euniceaa 4 роки тому +3

    Is it just me or the video is blur even at 720p?

  • @randybeeman7823
    @randybeeman7823 6 років тому

    I have oscillipia from a nerve being burned out due to otoxicity fro vancymycn and gentamycn. ^ yr **** is moving all around 24/7. No quality left in life. Can't do **** t be able to function

  • @Peacemakerblue
    @Peacemakerblue 6 років тому +2

    When people shake their heads why does it make me feel dizzy by concentrating on them?

  • @nesbertkagonda2447
    @nesbertkagonda2447 8 років тому +1

    awesome

  • @mrsmamalove
    @mrsmamalove 4 роки тому

    I’ve got hyperactive vestibular disorder! it sucks

  • @DiamondMind
    @DiamondMind 6 років тому

    Thought they were filled with perilymph.

  • @noowie5274
    @noowie5274 8 років тому

    what exactly is the job of the utricle and saccule?

    • @danielvattathichirayil7452
      @danielvattathichirayil7452 7 років тому

      both deal with vertical orientation (gravity) and linear acceleration

    • @noowie5274
      @noowie5274 7 років тому

      this was 7 months ago lol. anyways thanks!

  • @Womanwithblackdog
    @Womanwithblackdog 7 років тому +3

    This is how you know that God has a sense of humor.

  • @reemaalessa8394
    @reemaalessa8394 4 роки тому +1

    I don't understand this very much. She explained the abnormality in last seconds very fast!!

  • @aukaming2011
    @aukaming2011 8 років тому +4

    love ur video, it was so cute:)

  • @peterarnold475
    @peterarnold475 8 років тому

    I am kind of confused beacause if the three semicircular canals give sensory information about all possible head positions, why do we need the utricle and saccule?

    • @stupidkidlol
      @stupidkidlol 8 років тому +8

      +Peter Arnold simple answer is that the semicircular canals sense angular acceleration while the utricle and saccule sense linear acceleration.

    • @peterarnold475
      @peterarnold475 8 років тому

      +stupidkidlol Alright, makes sense. Thank you for the answer.

  • @LegendmemesDz
    @LegendmemesDz 10 місяців тому

    سبحان الله

  • @gregcox6165
    @gregcox6165 5 років тому +1

    Very confusing explanations:
    Semicircular canals provide visual stabilization (called VOR) during day to day head motions, such as looking side to side in a grocery store. There's no VOR in the roll plane (Y axis) governed by semicircular canals. Vertical and horizontal head turns are governed by the semicircular canals, while translational VOR (forward, backward {car travel], upwards and downwards{elevator}) is governed by the utricle for eye stability in their respective orbits AND redundant body / postural positioning with the proprioceptive system.
    No known balance contributions (known yet) are rendered by the Saccule unless it's an organ of primacy in the supine position for pre-postural infancy.
    The video explanation of dizziness is completely wrong; rotational spin through the semicircular canals manifests in inertial LAG (endolymph is slower than initial acceleration of the spin causing the otoliths to move OPPOSITE the direction of stimulation). When the spin stops inertial lag of endolymph continues. This doesn't cause dizziness, it's the lack of management of this stimulus (inertial lag, catch up, latency) that results in the perception of dizziness. Both utricular organs and the VOR system deficits can lead to "dizziness" when their reflexive contributions AND CNS repression systems are aberrant or damaged. However, utricular input errors cause most commonly POSTURAL anomalies and imbalance, NOT primarily dizziness (exceptions: Meniere's, boat travel).
    Head motion provoked dizziness (head turns) = VOR dysfunction
    Body motion provoked dizziness (boat travel) = utricular dysfunction
    Vestibular rehab is IMPOSSIBLE if the treating professional does not understand these VERY important differences.

    • @arocks1234567
      @arocks1234567 3 роки тому

      can you explain this to me again slowly, like im dumb

    • @TheDzungTa
      @TheDzungTa 2 роки тому

      I can understand this 6-minute video AFTER I spent about 20 minutes watching this video from professor Fink:
      ua-cam.com/video/AKDkzqZZZlE/v-deo.html

  • @devashreek8174
    @devashreek8174 4 роки тому

    Is it just me or the narrator's voice sounds awfully similar to Alex Dunphy from Modern Family? XD

  • @Sammy-hl9wb
    @Sammy-hl9wb Рік тому

    Professor Daemicke is that you?

  • @abcxyz8300
    @abcxyz8300 6 років тому

    I think the body position part is more useful for blind people cause non-blind folks can see what is their body position.

  • @jianpingwu1392
    @jianpingwu1392 6 років тому

    Ecellent

  • @DiTimCoco69
    @DiTimCoco69 5 років тому

    Any body here have experieced the dissociation?

  • @austinisintexas209
    @austinisintexas209 4 роки тому

    Anyone here from Baku when a guy shatters someone’s vestibular system?

  • @pastor1689
    @pastor1689 3 роки тому

    Why did video just end?

    • @emaxdakid1464
      @emaxdakid1464 3 роки тому

      Idk ig there was nothing left to say lol

  • @emjeeblends31
    @emjeeblends31 10 місяців тому

    If a person is deaf, he finds it difficult to balance his body???

  • @kowthem94
    @kowthem94 7 років тому +4

    not for medical students, too basic

    • @OGGYSOUN
      @OGGYSOUN 7 років тому

      Well it gives you basics so you can have some overview, the rest of the information can be found in any anatomic textbook.

    • @Smyth14x
      @Smyth14x 7 років тому +2

      It's also very clearly labeled as "MCAT" - ie it's for prospective medical students, not medical students. For a basal level, this video is great.

  • @abdulmatin1301
    @abdulmatin1301 4 роки тому +1

    Bhai Hindi m hota to accha hota

  • @williamsilitonga28
    @williamsilitonga28 6 років тому

    The pronounciation isn't clear

  • @TurtleCr3wSyria
    @TurtleCr3wSyria 6 років тому

    That valley accent doesn't help at all..

  • @zyenab6754
    @zyenab6754 2 роки тому

    مرض داری انگلیسی میزاری یانزار یاااینکه میزاری فارسی باشه

  • @rosarioarauco4627
    @rosarioarauco4627 2 роки тому

    Horrible video today with the new technology you can provide animation which wold make easier to understand

  • @kimiakhoshroo1300
    @kimiakhoshroo1300 5 років тому

    This is awesome thanks!!

  • @deenaalmghrebi4012
    @deenaalmghrebi4012 3 роки тому

    Amazing