I am post graduate resident with all Usmle steps cleared , but I admit that today I grasped the clear concept with clarity through this video . Just beautifully explained
An exceptional explanation of this topic! Explained perfectly without any superfluous information. Will send all of my medical students and residents to this video!
Thank you, very well explained. If you get a bilateral facial nerve palsy (it happens!), you'll be thinking about Guillain Barre syndrome, sarcoidosis and Melkersson-Rokenthal syndrome.
I found as an ER Dr the easiest way to Dx Bells Palsy when findings were VERY subtle and forehead not affected (yet) that the most reliable way was to watch the eyes blink. the affected eye does NOT fully close with blinking = Bells.
@@mamunurrashid3141 it is little confusing and wrong diagram 2 and 4 are upper motor neuron lesions so both eyebrows should be up and 2nd is left side UMNL , because UMNL is always contralateral so here both eyebrows should be up and not able to smile on right side
1. Infranuclear of left facial nerve 2. Supranuclear lesion of left facial nerve 3. Infranuclear lesion of right facial nerve 4. Supranuclear lesion of right facial nerve
We should remember the difference in the symptoms of UMN and LMN 1. Left lower motor neuron lession due to absence of nasolabial fold and unable to raise his eyebrow 2. Right upper motor neuron lesson coz only absence of nasolabial fold but pt can raise his both eyebrows 3. Right lower motor neuron lesson (vice versa of 1) 4. Left upper motor neuron lesson vice ( vice verse of 2)
Shouldn't the UMN examples be half a face is fully expressing, but the affected side has eyebrow up too. so it should be 2 eyebrows up on the UMN cases. ? This is a trick bc in all UMN lesions the other UMN can innervate the brow, so ALL 'intact' sides of the face should be able to raise eyebrow. 2+4 have a dead eyebrow on unaffected side, but the un-lesioned UMN should help raise it, right? Wasn't that the point of the differential. 1. left side is fully numb, with right eyebrow up so UMN is intact, so this is LMN on ipsilateral side (left) 2. right side of face fully numb signaling LMN on R, but with upper of left numb too. why is upper of left face numb? Why can't left ipsilat UMN innervate it. 3. right side of face fully numb, so LMN on ipsilateral R side 4. left side of face fully numb showing LMN on left, but upper side of right is numb. The right side has a lesion not discussed in this video (only numb upper right side of face).
2 and 4 are UMNL bcz upper motor has the privilege to give ipsilateral and contralateral suppliment to the face of the upper region. 1 and 3 are LMNL because the eyebrows are affected due to the lesion of the motor in the whole side face.
@@the_scrunchies_studio6952 it would be umnl only as patient is asked to raise their eyebrows and the only way we can check that is by comparing the normal side . Since affected side of patient is right side of face with the right eyebrow being raised as much as if not more than the normal side means that right upper half of face is intact therefore the lesion is left umnl (as umnl is contra lateral to affected side).
@@abidhossain2023 no If it's UMN lesion it will be of contralateral side. In 2 u can clearly see that right side of face is unable to smile so left UMN palsy is the ans for 2. Vice versa for 4.
I am post graduate resident with all Usmle steps cleared , but I admit that today I grasped the clear concept with clarity through this video . Just beautifully explained
Sir I am first yr student and want to know few things about usmle will u plz guide me
No doubt
An exceptional explanation of this topic! Explained perfectly without any superfluous information. Will send all of my medical students and residents to this video!
1.Left LMN
2.Left UMN
3.Right LMN
4.Right UMN
1.LMNL (Left)
2.UMNL (Left)
3.LMNL (Right)
4.UMNL (Right)
Mostly people are confused in 2&4 so its UMNL it is contralateral means on opposite side.
same
you are wrong
@@drjayverma9235she/ he is correct
But why eyebrows are not raised?
Absolute respect for people who clarify annoying topics to such excellence.
Such great content. Very very simplified and easy to understand. The only video explaining this topic under 10 mins
The only video which could clear my doubt. Thank you!
Bestest teacher in world💯💯💯💯
I was struggling for long time wanting to learn this topic but u solve the prob. Within few minute... Salute to u sir
This video is very much effective & easier. Thanks a lot ❤
Probably the best video explaining VII palsy! Tysm
Your video finally cleared my concept which I didn't understand from many times
Thank you, very well explained. If you get a bilateral facial nerve palsy (it happens!), you'll be thinking about Guillain Barre syndrome, sarcoidosis and Melkersson-Rokenthal syndrome.
Omg finally a video which gets straight to the point! Thank you!!!!
This is the best explanation for this topic…thanks a ton!
Thank you so much!!! I tried to understand that more than an hour and you du it so clear in 4 minutes... you are the best!
1(ruml), 2(RLML), 3 LUML, 4LLML
Pls explain this firmula
this is the best explanation I've seen to any topic in my med school history
such a life saver! I was cramming at the last moment,this video helped to understand the concept in short time..
CNS was never very difficult, but only we never had such Teaching....
Too good...
1 (left .uml)
2(Rt. Lml)
3(Rt. Uml)
4(Lt. Lml)
Tq ❤️for ur nice explanation
1- Left LMN lesion
2- Left UMN lesion
3- Right LMN lesion
4- Right UMN lesion
Excellent
2 is LMN lesion
Thanks alot for saving my life ...may you live long...such a easy explanation 😭
My pleasure
Thanks for the crystal clear explanation
Thanks so much a true lifesaver wish u all success and happiness greetings from Iraqi sophomore :3
Stay bless sir...haven't seen such illustrated information on this topic
Very helpful explanation, thanks.
Such a helpful video, Thank you!
What an explanation! Thank you so much sir.
thank you, now I understand! I needed this graph.
Very much useful sir 👍🙂... Thank you
I found as an ER Dr the easiest way to Dx Bells Palsy when findings were VERY subtle and forehead not affected (yet) that the most reliable way was to watch the eyes blink. the affected eye does NOT fully close with blinking = Bells.
This finding in both umn and lmn???
That was explained very well !
Thank you for good explanation ☺️
This video was extremely helpful
Thank you!!
Glad it was helpful!
@@Medinaz can bellspalsy affect your neck?
What a wonderful explanation, thank you a lot
Please tell answer
Such a simple and best explanation 💯
I might cry! Thanks alot
thanks only u made me this clear
Suffered from this concept since 5 years ❤
Glad to know that. Thank you
Do you have headaches duo to that?
Lol
Excellent, keep the good job going
Thanks
But you didn’t mention that affected side get flappy cause the unaffected side pull the muscle.
have gotten it at last. Thanks Sir
Most explanatory video 😊
Tq soo much for ur very simplified and awesome explination sir👏👏👏👏👏👏👏
My pleasure
Really great explanation, Thanks a bunch
Thank u Allah bless you very well understand on your concept
Thank you so much for your help 🙂
What a great explanation!!!!
1. Left LMNL
2. Left UMNL
3. Right LMNL
4. Right UMNL
PS: Considering both eyebrows raised in 2 and 4.
1. Left lmnl
2. Right umnl
3. Right lmnl
4. Left umnl
2 lt or rt ?
Please explain.
@@mamunurrashid3141 it is little confusing and wrong diagram 2 and 4 are upper motor neuron lesions so both eyebrows should be up and 2nd is left side UMNL , because UMNL is always contralateral so here both eyebrows should be up and not able to smile on right side
Fantastic and really simplified. Good job.
Best explanation ever❤
1.LMN lesion(L)
2.UMN lesion (R)
3.LMN lesion(L)
4.UMN lesion(R
3 should be lml for right side na ?
1) Left side LMN lesion
2) Left side UMN lesion
3) Right side LMN lesion
4) Right side UMN lesion
@@the_scrunchies_studio6952 He’s correct because the UMN lesion is contralateral
@@thegamersminds392 No. UMN lesion is contralateral
@@cliffordpeterson1159 You are right but you mis-interpret the image, see his solution video
excellent sir very very thanks to you never understand earlier
1. Infranuclear of left facial nerve 2. Supranuclear lesion of left facial nerve 3. Infranuclear lesion of right facial nerve 4. Supranuclear lesion of right facial nerve
Simple and very clear .tq u ..
1-LEFT LMN
2-RIGHT UMN
3-RIGHT LMN
4-LEFT UMN
Correct
Very useful, thanks!
Best explanation!!
Amazing amazing concept! I cannot find this anywhere
Excellent video
It is very clear to understand,Thanks
You are welcome
Very well explained thanks a lot
absolutely amazing
Sir , ye toh magic hai ✨😍
LMN - Lt. side
UMN - Rt. Side
LMN - Rt. Side
UMN - Lt. Side
Concept is cleared 😊
Thank you so much !
1- Lft LMNL
2- Lft UMNL
3- Rt LMNL
4- Rt UMNL
Thank you so much❤️
Super easy explanation 👍👍👍
Best explanation
Great job
Which side of face should raise when paralysis is in the left side of face
👍Great work
Very helpful
1. Left LMN Lesion
2. Right UMN lesion
3. Right LMN Lesion
4. Left UMN lesion
Wrong
@@AbcdEfg-yj9vv how i think so it's right
@@AbcdEfg-yj9vv can u explain
Nice video,
left LMN, right UMN, right LMN, left UMN
I think it is Left LMN, Left UMN, Right LMN, Right UMN
1- Left LMN
2- left UMN
3- Right LMN
4- Right UMN
Shouldn't 4 and 2 be LMN since the patient is not raising their eyebrows
@@Tumi_2000 i think the same but majority are different
We should remember the difference in the symptoms of UMN and LMN
1. Left lower motor neuron lession due to absence of nasolabial fold and unable to raise his eyebrow
2. Right upper motor neuron lesson coz only absence of nasolabial fold but pt can raise his both eyebrows
3. Right lower motor neuron lesson (vice versa of 1)
4. Left upper motor neuron lesson vice ( vice verse of 2)
1. Right LMNL. 2. Left UMNL. 3. Left LMNL. 4. Right UMNL
Shouldn’t option 2 and 4 be switched as the sign is always named by the side of the sign and not the side of the lesion?
I think lesions should be on contralateral sides
thank you sir
Thank you 🎉
Thank you so much
1.left sided LMN palsy
2.left sided umn palsy
3.rt sided LMN palsy
4.rt sided Umn palsy
If 2 is left sided umn palsy them why he is unable to raise eyebrows on both sides as he was asked to do
Thank you sir 😊
Which side of face is affected in bells palsy?
Thanks alot sir...
your video is so helpful😍
but there is a que.. if there is both sided UMNL feature will resemble to LMNL or not?
Your question is quite intrigue, since the ipsilateral innervations are affected due to the both sides involvement, then yes it will mimic LMNL
Nice information
1 Rt UMN lesion
2 RT LMN lesion
3 LT UMN lesion
4 LT LMN lesion
i have had it for 11 days after drunk at a party drinking too much beer, got it the next morning
Good video
thank you!
welcome
Lower faical effect in left side n unable to blink my eye right side
Thank you it was so easy after this video
Didi app ko kya problem hai plz reply zaroor kr aur mujhe balo app ko kya problem hai
Thanks you sooo much
Thank youuuuu
You rocked sir🤩🤩
amazing
Shouldn't the UMN examples be half a face is fully expressing, but the affected side has eyebrow up too. so it should be 2 eyebrows up on the UMN cases.
? This is a trick bc in all UMN lesions the other UMN can innervate the brow, so ALL 'intact' sides of the face should be able to raise eyebrow. 2+4 have a dead eyebrow on unaffected side, but the un-lesioned UMN should help raise it, right? Wasn't that the point of the differential.
1. left side is fully numb, with right eyebrow up so UMN is intact, so this is LMN on ipsilateral side (left)
2. right side of face fully numb signaling LMN on R, but with upper of left numb too. why is upper of left face numb? Why can't left ipsilat UMN innervate it.
3. right side of face fully numb, so LMN on ipsilateral R side
4. left side of face fully numb showing LMN on left, but upper side of right is numb. The right side has a lesion not discussed in this video (only numb upper right side of face).
Thanks alot air
2 and 4 are UMNL bcz upper motor has the privilege to give ipsilateral and contralateral suppliment to the face of the upper region. 1 and 3 are LMNL because the eyebrows are affected due to the lesion of the motor in the whole side face.
Can u plz explain me for 2nd like it should be lmn for right na
@@the_scrunchies_studio6952 it would be umnl only as patient is asked to raise their eyebrows and the only way we can check that is by comparing the normal side . Since affected side of patient is right side of face with the right eyebrow being raised as much as if not more than the normal side means that right upper half of face is intact therefore the lesion is left umnl (as umnl is contra lateral to affected side).
1)Lt.LMN. 2)Lt.UMN. 3)Rt.LMN. 4)Rt.UMN..from Dr.mallesh
4 ka n 2 ka glt nhi? corner of mouth raise right 2 n left 4 ka nhi hora?
2) *Rt UMN and 4) *Lt UMN
@@abidhossain2023 no
If it's UMN lesion it will be of contralateral side.
In 2 u can clearly see that right side of face is unable to smile so left UMN palsy is the ans for 2.
Vice versa for 4.
@@MrYashwantt e
loved it