Very well explained. Just something, I'd like to add to this is the Gates rule of 4 by Dr. Robert Gates. The 1st rule is about cranial nerves. So there are 4 cranial nerves in each brainstem structure. CN 3 and 4 in the midbrain CN 5,6,7,8 in the pons CN 9,10,11, 12 in the medulla. All multiples of 12 are in the midline, so CN 3, 4, 6 and 12 are midline, and they are also, by extension, the only pure motor cranial nerves. Rule 2 All structures starting with M are in the Midline And from posterior to anterior they are MN- Motor nuclei- 3,4,6,12 MLF- Medial longitudinal fasiculus ML- Medial Leminiscus MP- Motor pathway So any midline brainstem lesion, like medial medullary syndrome, will involve these structures. MN- Ipsilateral Cranial nerve lesion MLF- Ipsilateral INO- So inability to adduct ipsilateral eye and nystagmus in the the contralateral eye ML- Contralateral loss of vibrio and proprioreception. MN- Contralateral hemiplegia. Rule 3 All structures starting with S are to the Side or lateral And from posterior to anterior they are Spinocerebellar tract Spinothalamic tract Sensory nucleus of 5th CN Sympathetic neurons The mnemonic is CTVS So any lateral brainstem syndrome will involve Spinocerebellar- contralateral ataxia Spinothalamic- Contralateral loss of pain and temperature CN sensory nucleus Ipsilateral loss of pain and temperature over face. Sympathetic neurons Ipsilateral Horners syndrome. In addition, a lateral pontine lesion will involve- CN 5,7,8 A lateral medullary lesion will involve- CN 9,10,11 A lateral midbrain lesion will have no cranial nerve involvement.
Very well explained, effective overview of neuroanatomy and clear explanation of the pathology and clinical findings, I like that you are mentioning the side of each abnormality.. thank you very much
Thank u so much sir, i have understood every point much clearly ,i have always been in doubt to this topic.now all my fear related to this topic has gone. Thank u so much again
Bec contraction of one side of tongue makes tip of tongue to point or deviate opposite side normally. Paralysis of one side makes tongue contract to opposite side unabated hence is deviated to opposite side n same side appears as corrugated noodles.
Very well explained.
Just something, I'd like to add to this is the Gates rule of 4 by Dr. Robert Gates.
The 1st rule is about cranial nerves.
So there are 4 cranial nerves in each brainstem structure.
CN 3 and 4 in the midbrain
CN 5,6,7,8 in the pons
CN 9,10,11, 12 in the medulla.
All multiples of 12 are in the midline, so CN 3, 4, 6 and 12 are midline, and they are also, by extension, the only pure motor cranial nerves.
Rule 2
All structures starting with M are in the Midline
And from posterior to anterior they are
MN- Motor nuclei- 3,4,6,12
MLF- Medial longitudinal fasiculus
ML- Medial Leminiscus
MP- Motor pathway
So any midline brainstem lesion, like medial medullary syndrome, will involve these structures.
MN- Ipsilateral Cranial nerve lesion
MLF- Ipsilateral INO- So inability to adduct ipsilateral eye and nystagmus in the the contralateral eye
ML- Contralateral loss of vibrio and proprioreception.
MN- Contralateral hemiplegia.
Rule 3
All structures starting with S are to the Side or lateral
And from posterior to anterior they are
Spinocerebellar tract
Spinothalamic tract
Sensory nucleus of 5th CN
Sympathetic neurons
The mnemonic is CTVS
So any lateral brainstem syndrome will involve
Spinocerebellar- contralateral ataxia
Spinothalamic-
Contralateral loss of pain and temperature
CN sensory nucleus
Ipsilateral loss of pain and temperature over face.
Sympathetic neurons
Ipsilateral Horners syndrome.
In addition, a lateral pontine lesion will involve- CN 5,7,8
A lateral medullary lesion will involve- CN 9,10,11
A lateral midbrain lesion will have no cranial nerve involvement.
Very well explained, effective overview of neuroanatomy and clear explanation of the pathology and clinical findings, I like that you are mentioning the side of each abnormality.. thank you very much
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Easy and well explained. Highly recommended
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Yes we need IN. Opthalmoplegia video
The only explanation of this topic that i understood
Very well explained ❤
Amazing!! Thank you. This was incredibly helpful!!
讲得非常好!简明扼要,突出重点
pro max teaching bhai…..❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥
Bro this was better than anything ive ever seen
Simply clear. Superb.
It's very helpful.awesome.Thanks
This was absolutely amazing. Thank you so very much!
Very good Explanation👌👌👍🙏. Thank you.
Awesome lecture thanks a lot 😍
Very well explained👏
Wonderfuly explained 👌🏼
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Simply superb 👌
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Wow. Nice explanation. Thank you❤
Yes we need. Intranuclear opthalmoplegia
Can't thank you enough for this 💜
You are the best 😍
Tons of thanks
Thank you so much for such easy explanations and easily retainable videos. 🙏🏼
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Thanks a lot👏👏
Thank u so much sir, i have understood every point much clearly ,i have always been in doubt to this topic.now all my fear related to this topic has gone. Thank u so much again
You are most welcome. Keep sharing.
Neatly explained. Thank you.
Super helpful and conceptual now I don't have to memorize sign and symptoms individually
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Lots of love from India bro😍, thank you so much, crystal clear concept with awesome notes for recall 🙌
😊Glad you liked it.
Keep sharing. 😀
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
@@CrazyMedicine hello sir so lateral medullary has no corticospinal tract?
Nicely explained...thank you
thank you soooooo much for this amazing video..love it
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
best ever!!!!
thanks doc
🇵🇰
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Yes please will be very thankful if u do INO video
Thank you. Very well done -- I get it now. 🙂
Great❤❤❤
excellent explanation
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Internuclear ophthalmoplegia video needed
Beautiful work brother
amazing sir
Extremely good video
Thank you very helpful
Please do video on internuclear ophthalmoplegia
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Very well explained 👍👍👍👍👍please upload also pontine syndrome also🙏
Sure I will.
@@CrazyMedicine thank you so much 💛💛💛💛
best Video broo 💯💯
the best from Algeria thank you
Nice explanation
in Wallenberg syndrome m/c artery affected is Vertebral art > PICA
Excellent
Thanks
such a good video thank you so much!
@crazy medicine would you kindly create a video on medial and lateral pontine syndromes? I really enjoy your illustrations!!!
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
Amazing video .
AMAZING WORKKKK
Awsm
thank you very much
Wait...INO in medullary lesion?? Isnt it happening in lesions involving either midbrain and pons?? That got me confused
Ino if left side it is adduction of right eye not happened
Just awesome.....
thankyou very much sir !
Keep watching
Thank you ☺️
Bestttt 🎉
Thank you so much!
Glad it helped!
Best video
Great.
Thanx man this is cool
Thank uuuu❤❤❤
awesome!
amazing
Amazing!
Make more videos 👍
th-cam.com/video/DLT1nRGQoNQ/w-d-xo.html
You are God sir❤️
thank you soooooo much
Excellen
thank you for this video
Why the tongue is deviated to same side of the lesion in medial medullary syndrome please explain sir
Thank you
Bec contraction of one side of tongue makes tip of tongue to point or deviate opposite side normally. Paralysis of one side makes tongue contract to opposite side unabated hence is deviated to opposite side n same side appears as corrugated noodles.
Thanks alot
Thank you!
Thanks sir
🙌
Thank u doc
Thank you for the great video!
Thank youuuuuu
Thanks
Ant spinal artery post inf cerebellar art
ty!
Excellent
Thanks
thanks