I cannot express you and your team How much these videos are changing lives of doctors and medical students. Thank you so much for you time and your efforts and thank you for the great medical knowledge. You really have changed my life !
I agree man hes already help me know why yoga vientendon chi gong and good posture and how to practice proper posture is actually important.... I love learning his stuff
My whole campus believes in you. When I started my first year I didnt understand until I started watching ninger nerds, and now I am proud to say I pass my modules because of you. 🙏🙏 Thank you soo much💌 School of medicine, Namibia, Africa🧠
Rubrospinal tract: 1. Stimuli from: a. Deep cerebellar nuclei- Globose and Emboliform nuclei (proprioception) b. Cerebrum- Coritco-rubral fibers 2. Ventral tegmental decussation in the midbrain 3. Lateral white column (80% corticospinal fibers also present there) 4. Ventral grey horn 5. Flexor mm of upper limb (alpha and gamma motor neurons)
excuse me~ he said "rubrospinal tract keeps lower limb muscles intact and in check(?)" I'm not sure about what "in check " means. By the way, thanks for your summation!
5:30 don't the interposed nuclei (globos and emboliform) synapse with the contralateral red nucleus? at east from what i remember from your cerebellum video
My resources are showing the reticulospinal fibers are in lateral white matter are innervating lateral grey matter. Not lateral white matter to ventral grey matter. Great vid as always.
Thank u so much for your lectures, ive learned so much from u, do u have time to discuss thr pathophysiology of seizure please?i have so much difficulty in understanding seizure..thank u
there is two decussation sir the cerebellar fibers cross to the contralateral red nucleus then from the red nucleous to the contralateral half of the cord
In your cerebellum video you said that the globos and emboliform nucleus go through the opposite red nucleus because the cerebellum takes the Info from the ipsilateral side please answer me if ım wrong couse ım in a dilemma now
Awesome video once again! Quick Q: when referring to collaterals of fibres, are they axon branches or just terminals of some of the axons from the fibres?
I have a question! The fibers come from Cerebellum (information for propioception) make decussation or are Ipsilateral just like the Corticorubral Fibers? I ask because in Heines book he says that the fibers decussante and go for the contralateral Red Nucleus. Sorry for my english.
From Neuroanatomy online, tmc.edu. The rubrospinal tract is involved in the control of muscle tone and action of flexor muscle groups. ... Most rubrospinal fibers terminate at cervical and thoracic levels, but some extend to all cord levels. This tract's fibers have an inhibitory effect on extensor muscles and an excitatory effect on the flexor muscles.
Is the cerebral cortex inhibiting the red nucleus? So once there is a lesion above red nucleus, unopposed flexion of the UE occurs, causing Decorticate posturing? And the Rubrospinal tract extends as far as the thoracic spine, therefore has effects on the UE not LE. Thanks.
well, to my knowledge the corticospinal tract is purely bineuronal, and so it doesn't recieve signals from the cerebellum. The extrapyramidal tracts, including this one, recieves signals from the cerebellum which control the fine movements of the body. So for example, if I have an extrapyramidal lesion then the cerebellum cannot engage in the fine movement, and so if a doctor tells me to do the finger-nose test, I might hit the vicinity of my nose more times than my nose actually. Hope this helps
I cannot express you and your team How much these videos are changing lives of doctors and medical students. Thank you so much for you time and your efforts and thank you for the great medical knowledge. You really have changed my life !
Quiet agree !
exactly
I agree man hes already help me know why yoga vientendon chi gong and good posture and how to practice proper posture is actually important....
I love learning his stuff
My whole campus believes in you. When I started my first year I didnt understand until I started watching ninger nerds, and now I am proud to say I pass my modules because of you. 🙏🙏
Thank you soo much💌
School of medicine, Namibia, Africa🧠
He's saving the land of the brave😅🇳🇦
I’m a first year pharmacist student who has HORRIBLE pathophysiology professor ... you saved me from failing the course. Thank you so much
Rubrospinal tract:
1. Stimuli from:
a. Deep cerebellar nuclei- Globose and Emboliform nuclei (proprioception)
b. Cerebrum- Coritco-rubral fibers
2. Ventral tegmental decussation in the midbrain
3. Lateral white column (80% corticospinal fibers also present there)
4. Ventral grey horn
5. Flexor mm of upper limb (alpha and gamma motor neurons)
excuse me~
he said "rubrospinal tract keeps lower limb muscles intact and in check(?)"
I'm not sure about what "in check " means.
By the way, thanks for your summation!
I just watched 7.5 hours (yes yes, 7.5hrs) worth of your videos today! thank you so much zach!!
Hi! Im a second year OT student now, I survived my first year anatomy because of ur vids! Thank you!
Your videos are AMAZING. Thank you so much!
This channel has everything i have been looking for! Keep up the good work!
These videos make all the complicated information very easy and simplified!
Thank you so much!
You're the best! When I actually start earning money, I will donate some money to your pages. Your work is awesome!!
Thank You Ninja Nerd Lectures! Shout out to Kristen! Shout Out to Rob! Shout Out Zach! Long Live Ninja Nerd Lectures!
U r a blessing to us man . Keep up the good work Zac!
I am a physician assistant student and I just wanted to say, thank you for saving my life sir
God Bless this video for existing
mindblown for clinical integration with this
We wish U to upload more and more vedioes on basic neurophysiology .... Great thanks from 🇮🇶🇮🇶 Iraq 🇮🇶🇮🇶
Thanks . it is clear and easy to understand.
One of the best channels for medicos!...
I can't believe! I really understand the nervous system UMN and LMN.
7:49 to keep those "suckers" taut...
I lost it when he said this😂....
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Very helpful.. thank you so much... intrafusal and extrafusal fibers
Thank you for this series ❤
Pretty good understand thank you very much .Enjoying while watching your videos again thank you
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Nice sir .Enjoying your video and learning...
thank you you are the one of the best teacher
5:30 don't the interposed nuclei (globos and emboliform) synapse with the contralateral red nucleus? at east from what i remember from your cerebellum video
Yeah, I believe you are correct!
Thanks for your videos!!! :)
great overview!
thank you from russian student in czech republic
My resources are showing the reticulospinal fibers are in lateral white matter are innervating lateral grey matter. Not lateral white matter to ventral grey matter. Great vid as always.
beautiful video
very good.
Great ninja 👏🏻♥️
you are the best
thank you so much
You're the best
an absolute fawking legend
Thank u so much for your lectures, ive learned so much from u, do u have time to discuss thr pathophysiology of seizure please?i have so much difficulty in understanding seizure..thank u
excellent vids
Thank you! Outstanding!!
Awesome job👍
So good
Do you have a video on the clinical differences between decortication and decerebration?
Amazing! Thank you for sharing
You are amaaazzzing😍
Thanks❤
JazakAllah!
Congrads!! Well done!:)
Thanks sir
there is two decussation sir
the cerebellar fibers cross to the contralateral red nucleus then from the red nucleous to the contralateral half of the cord
Awesome ! love Your videos !
You are a awsm teacher 🔥
amazing
In your cerebellum video you said that the globos and emboliform nucleus go through the opposite red nucleus because the cerebellum takes the Info from the ipsilateral side please answer me if ım wrong couse ım in a dilemma now
Yes, the Cerebellum talks to the contralateral red nucleus, but then the rubrospinal tract crosses right back.
Loooooove your videos
Thank you so much💓💓💓💓💓💓
Thank you so much 🌹
Thank you
thanks
You're amazing !!! thanks so much !!!
Jazak ALLAH🌸🌸🌸🌸
Awesome video once again! Quick Q: when referring to collaterals of fibres, are they axon branches or just terminals of some of the axons from the fibres?
awesome
Really helpful!!
thank u so much its really a great help :)
It also inhibits activty of extensor/antigravity muscles
that was mentioned in vestibulo spinal tract's video
is the topic really easy or are you really good at explaining
I have a question!
The fibers come from Cerebellum (information for propioception) make decussation or are Ipsilateral just like the Corticorubral Fibers? I ask because in Heines book he says that the fibers decussante and go for the contralateral Red Nucleus.
Sorry for my english.
Does that mean lower limb flexors are inhibited by the red nucleus?
doesn't the cerebellum give the opposite red nucleus? because eventually it needs to be ipsilateral coordination.
thankyou
Love your videos, but my neuro book says the Rubrospinal tract does Extension not flexion.
Hello! I used netters neuroscience.
From Neuroanatomy online, tmc.edu.
The rubrospinal tract is involved in the control of muscle tone and action of flexor muscle groups. ... Most rubrospinal fibers terminate at cervical and thoracic levels, but some extend to all cord levels. This tract's fibers have an inhibitory effect on extensor muscles and an excitatory effect on the flexor muscles.
In the cerebellum video you said efferent fibers come from dentate neucleus and here you say come from interposed neucleus !!!!!
So is it new tract???
THANKS!!!!!!!!!
Ninja Nerd Science!
Is the cerebral cortex inhibiting the red nucleus? So once there is a lesion above red nucleus, unopposed flexion of the UE occurs, causing Decorticate posturing? And the Rubrospinal tract extends as far as the thoracic spine, therefore has effects on the UE not LE. Thanks.
Yes exactly lesion above red nucleus causes decorticate posturing and lesion below red nucleus causes decerebrate posturing.
Thanku sir
Commenting for the algorithm
Relationship with medial rectus
What is the need for all these tracts when there is already corticospinal tract supplying all the muscles?
I think when corticospinal tract got damaged then these tracts can work instead..
Always nice to have a backup
well, to my knowledge the corticospinal tract is purely bineuronal, and so it doesn't recieve signals from the cerebellum. The extrapyramidal tracts, including this one, recieves signals from the cerebellum which control the fine movements of the body. So for example, if I have an extrapyramidal lesion then the cerebellum cannot engage in the fine movement, and so if a doctor tells me to do the finger-nose test, I might hit the vicinity of my nose more times than my nose actually. Hope this helps
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my textbook says rubrospinal is for wrist and finger extensor muscles not flexor,, ah
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Don't you think it's dentate nucleus?????
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awesome