Upper vs. Lower Motor Neuron Lesions || USMLE 

I have been an internal med doc for over 30 years and a lifelong learner. NO ONE has ever explained this as well as you have. Thank you!

Amigo... you rank very highly on my respect and admiration list, because you've demystified all that I have been struggling to memorise for the past 3 weeks in a 9:26 minutes tutorial. You may not have been told this before but you are good at teaching. ;)

You made UMN & LMN so much easier to understand than the hour lecture from my Phd. OTR/L professor!

Hiii! I am a physical therapist and recently took the NPTE here in the US, and Thank God I passed!!! I really would like to thank you for sharing these easy-to-learn videos to all of us. You have been such a blessing. Thank you!!❤

Thank you for making UMN/LMN into a very simple concept to understand. Your explanation is very organized and easy to follow. Took me five other videos to get to the one that makes most sense for me :)! THANK YOU.

Bruh, I'm pretty sure a 5 year old could nail these questions after this video. You're amazing!

toes point UP literally blew my mind. it's funny when you're studying the complexities of medicine how easy it is to forget something that isn't super difficult of a concept, but it just gets lost because of the amount of information in your brain is just insane

This might be your best memory aid yet! Thank you!

"Everything is more, everything is up" #legend

THANKYOU! a concept that has confused me all day in lectures has been cleared up in under 10 minutes! you are a LEGEND!!!

Regarding hypertonia, think of a lesion to the upper motor neuron as if there is no descending input (inhibition) from the upper motor neuron. Therefore the lower motor neuron is disinhibited and is free to become very active, leading to hypertonia

when I see you have made a video on something I can't explain the happiness I feel. Thank you!

This is a class video! A difficult subject made very easy in less than 10 minutes. Deserves a like! :)

Thanks for explaining the difference. I looked this up in several different textbooks and couldn't understand the difference but your explanation was very clear and made sense right away!

Yes indeed,who says you can't teach and old dog new tricks?......Believe it or not, I'm 62 studying for NBCOT and I was able to follow your explanation. Thanks!

Thank you, Im and MD2 student who is very grateful for your clear and concise explanation, time efficient and straight to the point! Very impressed.

Great summary! Just wanted to add that cranial nerve nuclei and their processes are also considered LMN

None of my textbooks explained it in a way I could understand. Thank you!!

U made it so easy thank you

I'd have saved so much time if I had seen this earlier

You made it easier for me to understand. ❤ Thank you so much! 😘

Nobody could teach this more easier than this! Thank you so much 🥰

You have a gift, thank you!

Thank you for explaining that!!!!!! I just couldn't understand what they meant by UMN and LMN

Very beautifully and clearly explained presentation! Thank you for making me understand better! Thank you so much from Malaysia 🇲🇾 3/8/2019

I didn't feel this was covered well in nursing school and this helped a lot. Thanks.

Thank you very much. I used this to help me remember a couple things from 2 years ago and it more than helped. Thank you.

Amazingly presented, thankyou so much. Your lectures are always helpful

ty

THANK YOU!!! You made this concept so easy.

the way this was made simplified by u is beginning to make me think these professors make these topic complex on purpose in class

you give me hope! thank you so much for being so "high yield"!

Dude..marry me 😂😂😂 for real though THANK YOU...it’s gonna be impossible to mix up UMN and LMN now...and it was so simple I can’t believe I didn’t get it from my nursing textbook lol ok Again...thanks... from a loyal new subscriber and a grateful nursing student. Debbie Q Nur202 SUNY Orange Hudson Valley NY ❤️

Well articulated simple and easy to understand

Please make a video of the signaling pathways i always get confused please please

ive seen "faciculations" show up in stems before and these are LMN. good to consider.

Thank you! you put a lot of details and made it simple to remember.

Dude this is legit the simplest anyone has ever made it to learn UMN V LMN.

Mneumonics start at 4:50 (also commenting for YT algorithm. IMG here studying for Step 1!!)

Fantastic, loved the way you explained this, used to teach anatomy & physiology and you made this so easy to understand , thank you

Thank you sir,you made it easy,amazing video....

哥们，你讲的太好了，谢谢。

Best video from all present on internet

Thank you for this simple n easy to understand the diff.btn UMNL& LMNL note

Great teaching... Now my concept is clear.. Thank you

It’s seems to me that fasciculations are the exception to this mneumonic. Can anyone explain why you see fasciculations / muscle twitching in LMN lesions?

Brilliantly explained! Thank you 🙏

I had the same pneumonic ... made easy...as they say great mind thinks alike.

Thank's! You realy helped me studying English references and textbooks!

never thought it ws tht easy.. incredibly good work.. thnkx lot

nice and helpfull.. the up and down keywords for remembrance is great... thnxx

Thank UOU ALOT U R A LIFE SAVER NO ONE COULD EXPLAIN THIS BETTER

At age 78 I must be dead! My toes do not go up or down when lightly stroked! I am using the ability to climb even two steps hands free. I exercised all my life. I can go up the stairs but I have to hang on to the banister rails and pull my self up 15 steps. And for all the knee exercises and yoga I did, I don't know what happened to my beautiful knees and legs! I was always diligent about my diet also. I did massage for 33 years and now my hands and fingers are numb, but not my feet. JanieMartinSings

Concise and very well explained. Thanks Brosky!

@1:42 a lotor motor!?!! LOL Awesome video BTW 👍🏼

thank u very much ...best doctor ever it was very helpfull

Extremely helpful. Thanks! -SPTA

Thank you for uploading this!

Wow. That's helpful. My toe just about smashes my forehead when I get tested (and other times).

OMG I think I'm in love! THANK YOU! you made it so easy

yo this helped for my motor exam for neuron. thanks bruh

thanks for this! One question I understand that + Babinski reflex is a primative reflex and does not normally occur in adults. Why is it that it reoccurs when there is an UMN Lesion?

easily explained! Thank u so much for uploading 👍

first of all wow, great video and exlanation. I have a question though, why do the toes point down with lower motor neuron lesions in response to the reflexhamer, wouldn't they just not move/beparalized. thanks for the answer in advance;)

Immediatly subscribed

This made things pretty clear, thank you!

This is very helpful. Ten minutes and my confusion about this topic is gone. Thank you very much! Do you plan to cover other topics? I would be interested in a subscription to your brief overviews. And again thank you and best wishes. LA

Made this easy to understand. Thank you.

Thank you so much for this wonderful teaching 😍😍 god bless you 😊 It helped me a lott in clearing all my doubts ❤️

This is called Perfection . Thanks a lot💕

FANTASTIC VIDEO! thank you

thanks , for easy tutorial and making subject easy.

Excellent summary

Very informative and easily explained..Thank you

That was more than excellent.good work

you are a genius sir

Thank you so much! 📚👯👶 for helping me recalled it, and make it more simple~

Thank u for this very nice and simple explanation

One comment how can a spastic and hypertonic muscle atrophy?We know with and UMNL there is actually hypertrophy of the muscle correct? Our muscles want to be contracting all the time. The UMN are actually signaling the LMN to not allow them to fire. If the UMN is damage there is nothing to stop them from contracting all the time. This would cause constant firing/contracting of the muscle which would equal hypertrophy not atrophy, correct? I do agree with you that long term there would be disuse atrophy, but an UMNL is going to present to a Dr. hopefully long before this is seen. The muscle is going to present with hypertrophy or most likely as normal. So are you just going with the excepted answer on the USMLE? Other then that confusion great video!

Thank you so much! It helped me a lot !

Your explanation is really good...Plz make video on Parkinson too

Thank you! ❤

SO HELPFUL! Thank you

UMNL 1)BABINSKI SIGN PRESENT 2)CLONUS PRESENT 3)EX-RABIES 4)M.WASTING ABSENT 5)F.TWITCHING ABSENT 6)FLACCID PARALYSIS 7)MUSCLE TONE INCREASE 8)UMNL STAND FOR UPPER MOTTER NEURON LESION

Awesome video! Easy to understand

Thank you so much ❤

Thanks a lot for the video...It was very useful but I have a query regarding this one...In UMN u mentioned there is dysregulated signalling...But how?Either brain or proximal spinal cord has a pathology...So how can the impulse even come upto the anterior horn cell to be dysregulated?

wish had seen this vid a couple of months ago!!

You're awesome. Thank you so much.

Really thank you sooo much it was soo useful vedio.

so helpful! thank you!

Excellent video

thank you for your good work !

Great

very simple informative n straight..ty

Awesome! Very easy to understand!

what about fasciculations? they are a LMN sign that was not covered on this video

Amazing amazing amazing.. why dint i see it in my 1st year of mbbs !

Thank u so much, so amazing💙❤️💜