Neurology | Descending Tracts: Rubrospinal Tract

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Professor Zach Murphy will continue to move through the subcortical tracts lecture series. During this lecture we will be transitioning our discussion into the anatomy and function of the rubrospinal tract. We hope you enjoy this lecture and be sure to support us below!
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#ninjanerd #RubrospinalTract #DescendingTracts

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Quiet agree !

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exactly

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This channel has everything i have been looking for! Keep up the good work!

[@ansai.2451]

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)

[@user-ox5ts9mq7f]

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!

[@eyyys1342]

Hi! Im a second year OT student now, I survived my first year anatomy because of ur vids! Thank you!

[@duhaal-qaderi689]

These videos make all the complicated information very easy and simplified! Thank you so much!

[@angeliquetousignant1875]

I just watched 7.5 hours (yes yes, 7.5hrs) worth of your videos today! thank you so much zach!!

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Your videos are AMAZING. Thank you so much!

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Pretty good understand thank you very much .Enjoying while watching your videos again thank you

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Very helpful.. thank you so much... intrafusal and extrafusal fibers

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thank you you are the one of the best teacher

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7:49 to keep those "suckers" taut... I lost it when he said this😂....

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Thank you! Outstanding!!

[@monkstink1913]

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?

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Congrads!! Well done!:)

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Nice sir .Enjoying your video and learning...

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great overview!

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Thank You Ninja Nerd Lectures! Shout out to Kristen! Shout Out to Rob! Shout Out Zach! Long Live Ninja Nerd Lectures!

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Awesome ! love Your videos !

[@ericksonj22]

Do you have a video on the clinical differences between decortication and decerebration?

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[@karthik_silkroads]

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

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Yeah, I believe you are correct!

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[@kambehzadi1498]

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.

[@flancleybrunno5184]

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.

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thanks

[@bilgesukarausta1852]

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

[@alexanderromano1986]

Yes, the Cerebellum talks to the contralateral red nucleus, but then the rubrospinal tract crosses right back.

[@sevvyboi]

Does that mean lower limb flexors are inhibited by the red nucleus?

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[@narledude1996]

an absolute fawking legend

[@walaabdeljawad1439]

doesn't the cerebellum give the opposite red nucleus? because eventually it needs to be ipsilateral coordination.

[@yosephinirene2996]

thankyou

[@ehabsaed8436]

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

[@linahan1634]

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.

[@NinjaNerdOfficial]

Yes exactly lesion above red nucleus causes decorticate posturing and lesion below red nucleus causes decerebrate posturing.

[@yenibera.priscillaJCD]

Thanku sir

[@bilalabayomi8521]

It also inhibits activty of extensor/antigravity muscles

[@thekharataykid]

that was mentioned in vestibulo spinal tract's video

[@hassanasim7641]

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???

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❤️❤️❤️

[@rajpranjal8861]

What is the need for all these tracts when there is already corticospinal tract supplying all the muscles?

[@asmasalama3701]

I think when corticospinal tract got damaged then these tracts can work instead..

[@ToanTheNomad]

Always nice to have a backup

[@emanuelbogdan8451]

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

[@josetrujillo738]

Ninja Nerd Science!

[@iammomstrong]

Love your videos, but my neuro book says the Rubrospinal tract does Extension not flexion.

[@NinjaNerdOfficial]

Hello! I used netters neuroscience.

[@hufgu]

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.

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[@yianna4505]

my textbook says rubrospinal is for wrist and finger extensor muscles not flexor,, ah

[@thekharataykid]

is the topic really easy or are you really good at explaining

[@sanayadhawan6029]

Relationship with medial rectus

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Commenting for the algorithm

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[@nainachhaparia672]

Don't you think it's dentate nucleus?????

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