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

On By In Maintaining Balance & Preventing Dizziness

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Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/processing-the-environment/sensory-perception/v/somatosensation-1?utm_source=YT&utm_medium=Desc&utm_campaign=mcat

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105 comments

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

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

    1. 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.

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

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

    2. I see that there’s a lot of perspectives in this. In my personal experience, I feel that professors being knowledgeable on their field don’t necessarily equate to being an educator. Transmitting knowledge is an entirely new skillset than just knowing things. I saw professors effectively teach their class with the fewest slides, fewest words, and fewest confusion. And then there were those who struggle to even communicate the simplest concept. Hence, I believe that this boils down to how well versed a professor in actually ‘teaching’ rather than just ‘knowing.’ Regardless, respect to all professors.

    4. SlightlySaturated that’s because, you come and watch these videos after their lecture, and that’s why it feels easier .
      But it takes a long time for us to understand it in the first go I guess. FYI, I love khan academy – I fact, I had the same question as you did..

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

  12. 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.

    2. both deal with vertical orientation (gravity) and linear acceleration

  17. 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?

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

  18. 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

    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.

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

  25. 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.

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

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