Upper and Lower Motor Neuron Lesions | UMN vs LMN, Differences and Mnemonic

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Published 2018-07-06
Lesson on differences between Upper and Lower Motor Neuron Lesions. Upper motor neurons (UMN) are located within the brain and brainstem and send their axons down the spinal cord to innervate lower motor neurons (LMN). Lower motor neurons (LMN) are located within the ventral horn of the spinal cord and send their axons towards the periphery to innervate skeletal muscles. Lesions in upper and lower motor neurons have characteristic differences.

In this lesson you will learn what upper motor neurons and lower motor neurons are, where they are located in the central nervous system and what happens when their is a lesion or damage to them. You will also learn the reason for the characteristic differences between lesions in UMN and LMN.

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Thanks.
JJ

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***EXCLAIMER: The content (ex. images) used in this lesson are used in accordance with Fair Use laws and are intended for educational/teaching purposes only.***

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**MEDICAL DISCLAIMER**: JJ Medicine does not provide medical advice, and the information available on this channel does not offer a diagnosis or advice regarding treatment. Information presented in these lessons is for educational purposes ONLY, and information presented here is not to be used as an alternative to a healthcare professional’s diagnosis and treatment of any person/animal.

Only a physician or other licensed healthcare professional are able to determine the requirement for medical assistance to be given to a patient. Please seek the advice of your physician or other licensed healthcare provider if you have any questions regarding a medical condition.

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Although I try my best to present accurate information, there may be mistakes in this video. If you do see any mistakes with information in this lesson, please comment and let me know.

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Thanks for watching! If you found this video helpful, please like and subscribe!
JJ

All Comments (21)
  • @nice18able
    JAYSUS CHRIST!!!! I spent so much time googling this 10 years ago in medical school and now this has so beautifully been explained. Thank you so much. Now it's permanently in my head.
  • @michelle6489
    thank you for making UMN/LMN lesions so much easier to understand and absorb!!
  • @emilyparks8635
    Thank you SO much for this video. I've watched several videos before this one and it finally clicked for me because you explained it so well.
  • @LJ-ih6xv
    This was very helpful. Thank you for taking the time to explain it. I always found this confusing in neuro, but after watching your video, i'm not exactly sure why! The mark of a good educator is taking complicated things and simplifying them, which is exactly what you did. Thank you!
  • @angelkanda7966
    This is the best video i have seen on difference between UMN and LMN lesions... Thankyouu for thia wonderful explanation ❤️❤️
  • @nirvana5902
    This was quite possibly the best explanation I have seen of this. Thank you very much!
  • @jessicay.6309
    Thank you! great explanation. I was looking for this perfect video!!
  • @Khhh555
    The explanation is so clear..and it’s easy to understand..thank you ❤
  • @tane1038
    This was beautifully explained. Thank you !🙏🏾
  • @Abeeer-tk8ln
    Really helpful ☺️ This is the 3rd video I'm watching and now I finally get it☺️ Thankyouu..
  • @that1chickinFL
    Thanks for this video. The way my professor laid it out it sounded so confusing, but your lecture was incredibly clear to the point where I wonder why I didn't get it before. Throughout the whole video, I just kept saying "why the heck didn't she just explain it like that?" What a difference a good teacher makes!
  • @sarad7067
    Amazing I was so confused before watching. Thank you
  • @sara9181
    Thankyou so much for explaining so well.
  • @imakemusique
    Very clear and informative video, saved me on that one! Thanks!