Stroke
4:13
Added: 7 months ago
From: nucleusanimation
Views: 26,293
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  • I'm surprised that you didn't list the symptoms associated with each type of stroke. Being able to recognize the signs and symptoms and calling 911(or 999) can save a life! Strokes are nothing to mess around with.

  • There is almost no reservoir of stem cells for neurons. anyway good video.

  • 1 person got stroke

  • 2:49 BURSTS!!!

    God damn it nucleusanimation. You make it sounds painful and funny at the same time. lol

  • Cool video, but why did it have to be explained in second person? :S

  • I don't are if it is popular or not now, I just thank god this channel exists. I am a teen that is really interested in medical stuff so I love seeing videos explaining and animating what is happening inside the body. Thanks for this a lot.

  • @Eleanna4fun Thanks!!

  • @Eleanna4fun me too

  • Notice how because the thumbnail doesn't have split legs or the word birth/vagina isnt in the title no one watches it. Honestly I found this pretty interesting. science makes everything sound and look more painful.

  • @VisualPrefection  Thanks for your comment, and you make a valid observation about the relationship between thumbnails, keywords and Youtube popularity! Although this video won't receive as many views as our birth animations, it should receive a very respectable number (100,000 views estimated) over the next 12 months. We hope that it helps people who want to understand more about stroke.

  • stuff like this is scary. Could happen any time and anywhere, then time becomes a factor. What are ways to reduce having a stroke and blood clots? Drinking a lot of water I'm sure but any foods or workouts?

  • drink a full bottle of scotch then ur blood flow would be good and normal XD

  • My grandmother had a ischemic stroke caused by an embolism a year ago (at 80 yrs old). She lost her ability to talk, swallow food, and carry her own body weight. However, after 9 months and many hours of therapy, she is able to wisper, swallow soft foods, and walk with the aid of a walker.

  • interesting, so would returning the blood flow heal the damaged part of the brain? as we see the dark blackened area looks like it returns to normal after the blockage is cleared

  • @TheGeckoNinja

    from what I understand nerve tissue (including the brain) doesn't heal (exactly), it scar's. However the brain is very adaptive, and other areas can often adapt themselves to do what the now dead portion of the brain used to be in charge of. I believe this is primarily what the recovery, and therapy of stroke, and other patient's with brain damage involves.

    Can anybody else more knowledgeable corroborate or correct me?

  • @grenin1010 @grenin1010 It would be better to say that neurons do not regenerate in adult CNS (in general) rather than nerve tissue. There are a few places in which adult neurogenesis occurs. There are many other cell types in nerve tissue which multiply readily in response to growth queues or damage. The scar (gliosis) you mention is formed by glia. Denervated tissue can have some function restored by the sprouting of collaterals from adjacent axons.

  • @TheGeckoNinja Depending on the severity of the stroke and the collateral blood suplly of that are you will discover areas which are effected far more severe that for example the outer edge of the ischemic area. If a nerve cell doesn't get enough O2 it will "malfunction" but not die immediately. If it dies however it doesn't regenerate because there is virtually no stem-cell reservoir from which new cells would need to be derived.

  • @Rubashow "If it dies however it doesn't regenerate because there is virtually no stem-cell reservoir from which new cells would need to be derived."

    That's incorrect. Both neurons and glia are derived from the same precursor cells.

  • @YurNotSpecial This happens during embryogenesis. Stem cells in the adult body have usually only the potency to develope into one certain tissue. Markoglia have the same embryologic origin as Neurons but they differenciate differently. They keep the ability to proliferate the entire human life, unlike Neurons, that stop proliferation before birth. Mirkoglia are of a different embryoligcal origin, as they are derived from mesenchymal cells. Neurons do not regenerate.

  • @Rubashow You just contradicted yourself. Your first claim was that there are no neural stem cells in the adult CNS. Now you say it's developmentally regulated.

    Thank you for agreeing with me!

  • @YurNotSpecial My claim wasn't that there are no stem cells in the adult CNS. I said that there is almost no reservoir of stem cells for neurons. You started talking about Glia-Cells and were referring to their common origin with neurons. That however doesn't matter considering the regeneration of Neurons in the adult CNS.

  • @Rubashow A few key words you should be using include: transcription factors, neurotrophins, growth queues...

  • @Rubashow oh thanks :)

  • ...and LOVE

  • Very well done videos.

  • Beautiful!

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