Internal Spinal Cord (Gray Matter, White Matter, Funiculus) - Anatomy
ฝัง
- เผยแพร่เมื่อ 13 ก.ค. 2024
- PS! There's a little mistake in the table at the end (white matter). Numbers 1 and 2 are switched. Apologize for the minor mistake!
Content:
Introduction: 0:00
Internal Surface of Spinal Cord: 01:03
Gray Matter of Spinal Cord: 02:08
White Matter of Spinal Cord: 06:47
Arrangement of White Matter: 7:22
Posterior Funiculus: 12:31
Lateral and Anterior Funiculus: 14:29
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Internal Surface of Spinal Cord
- Grey Matter
○ Nerve Cell Bodies and Dendrites
- White Matter
○ Myelinated axons and glial cells
Grey Matter of Spinal Cord
- Anterior Horn (Conu Posterius)
○ Motor Nuclei
- Posterior Horn (Conu Posterius)
○ Marginal Nucleus (Nucleus Marginalis)
○ Gelatinous Substance of Rolando (Substantia Gelatinosa Rolandi)
○ Nucleus Proprius
○ Posterior Thoracic Nucleus (Nucleus Thoracicus Posterior)
- Lateral Horn (Conu Lateralis)
○ Sympathetic and Parasympathetic fibers
- Intermediate Column (Columna INtermedia)
○ Intermediomedial Nucleus (Nucleus Intermediomedialis)
○ Intermediolateral Nucleus (Nucleus Intermediolateralis)
○ Sacral Parasympathetic Nuclei (Nucleus Parasympathetici Sacrales)
- Central Zone (Zona Centralis)
- Central Canal (Canalis Centralis)
- Central Gelatinous Substance of Spinal Cord (Substantia Gelatinosa Centralis)
- Fasciculi Proprii
- Spinal Reticular Formation (Formatio Reticulatis Spinalis)
White Matter of Spinal Cord:
- Posterior Funiculus
- Lateral Funiculus
- Anterior Funiculus
White Matter Arrangement:
- Ascending Tracts / Afferent Tracts (Tractus Ascendentes s.afferentes)
○ Unconscious og to Cerebellum
§ Unconscious Proprioceptive Sensation (Posture, Joint Stability, Feedforward Control)
§ Anterior SpinoCerbellar Tract (Tractus Spinocerebellaris Anterior)
§ Posterior SpinoCerebellar Tract (Tractus Spinocerebellaris Posterior)
○ Conscious go to Cortex
§ Conscious Proprioceptive sensation (Kinesia, Joint Position, Sense of Force)
§ Touch, Pain, Pressure Temperature
§ Anterior Spinothalamic Tract (Tractus Spinothalamicus Anterior)
§ Lateral Spinothalamic Tract (Tractus Spinothalamicus Lateralis)
§ Cuneate Fascicle (Fasciculus Cuneatus)
§ Gracile Fascicle (Fasciculus Gracilis)
- Descending Tracts / Efferent Tracts (Tractus Descendens s.efferentes)
○ Involuntary Movements (Extrapyramidal Tracts)
§ Balance, Body Posture, coarse movements
§ Rubrospinal Tract (Tractus Rubrospinalis)
§ Tectospinal Tract (Tractus Tectospinalis)
§ Vestibulospinal Tract (Tractus Vestibulospinalis)
§ Olivospinal Tract (Tractus Olivospinalis)
§ Medial Reticulospinal Tract (Tractus Reticulospinalis Medialis)
§ Lateral Reticulospinal Tract (Tractus Reticulospinalis Lateralis)
○ Voluntary Movements (Pyramidal Tracts)
§ From Pyramidal Cells of Primary Motor Cortex
§ Anterior Corticospinal Tract (Tractus Corticospinalis Anterior)
§ Lateral Corticospinal Tract (Tractus Corticospinalis Lateralis)
Posterior Funiculus:
- Cuneate Fascicle (Fasciculus Cuneatus)
- Gracile Fascicle (Fasciculus Gracilis)
○ Epicritic Sensibility (Propception and Mechanoreceptors)
Lateral Funiculus:
- Anterior SpinoCerbellar Tract (Tractus Spinocerebellaris Anterior)
- Posterior SpinoCerebellar Tract (Tractus Spinocerebellaris Posterior)
- Lateral Spinothalamic Tract (Tractus Spinothalamicus Lateralis)
- Lateral Corticospinal Tract (Tractus Corticospinalis Lateralis)
- Rubrospinal Tract (Tractus Rubrospinalis)
- Lateral Reticulospinal Tract (Tractus Reticulospinalis Lateralis)
Anterior Funiculus
- Anterior Spinothalamic Tract (Tractus Spinothalamicus Anterior)
- Anterior Corticospinal Tract (Tractus Corticospinalis Anterior)
- Tectospinal Tract (Tractus Tectospinalis)
○ Reflexes associated with eyes and neck
- Vestibulospinal Tract (Tractus Vestibulospinalis)
○ Balance and Posture
- Olivospinal Tract (Tractus Olivospinalis)
○ Balance and Posture
- Medial Reticulospinal Tract (Tractus Reticulospinalis Medialis)
- Medial Longitudinal Fasciculus (Fasciculus Longitudinalis Medialis)
QUIZ
Sources used in this video:
- Memorix Anatomy 2nd Edition by Hudák Radovan (Author), Kachlík David (Author), Volný Ondřej (Author)
- Biorender
- University notes and lectures
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Tears came out of my eyes understood this topic completely ❤️❤️❤️❤️❤️
exactly my feeling right now
It's ok bro it's ok don't cry
Same!
I'm a med student and I was really struggling with some of these topics, soI just wanted to repeat how thankful I am for these videos about the CNS. I have a big exam coming next week and watching your videos turned out to be so helpful, informative, and engaging for me. You explain something easily in 20 minutes that my lectures have taken 8 hours on. Thank U so much.
That's the reason I spend time making these videos! I'm really happy you're finding them helpful! 😊 Wish you all the best with your upcoming exam! 💪🏽🥳
Thanks
@Taim Talks Med plz kindly upload all the 2nd year mbbs lectures...pllzzz its really helpful for us...
Really appreciate your efforts...
Plzzzx do upload videos soon
The best video I have ever seen in this topic! thanks a lot.
This literally saved my whole day!
Thank you soo much to making it understand in a more simpler way...
Neuro anatomy is very complex, thank you for presenting it in such an accessible way ❤
PS! There's a little mistake in the table at the end (grey matter). Number 1 and 2 are switched. Also - It seems like number 11 and 13 has disappeared from the drawing while preparing the scheme (A little extra challenge?😉)
Apologize for the minor mistakes!
Please clear my one doubt first you told that involuntary action are done by extrapyramidal tracts......but later you told that they perform voluntary action???
At 18:05
@@farheen2176 they control involuntry
@@farheen2176 I think he means the involuntary actions of the extrapyramidal tracts "support" the voluntary movements from the pyramidal tracts.
There are some other mistakes as well - in this video as well as the one for Medulla Oblongata, you mention extrapyramidal tracts such as the Rubrospinal tracts being responsible for fine motor movement and conscious motor movement, while they don't come from the pyramidal cortex
incredibly put together and well explained. thank you so much for this!!!
Thank you. All of your videos are really useful. And also at the right time for me now when I study it...💗🙌
Great video!!
I was studying spinal cord today and the explanation of the unconscious proprioceptive sensation was so helpful loved it! Easy to understand 👏🏻👏🏻
Ur seriously a genius i was literally dead struggling to understand the anatomy of spinal cord i won't say u made it easy bcoz it is a hard topic but u made it so logical nd understandable..hats off man!!!🎉
Thank you soooo much 🥹🥹🥹 This video is pure gold! 🥹 I finally understand this topic which I was struggling so much with!! Once again Thank you so much!
Besttt videooo
You literally save my life every time ❤❤❤thank you sooo much
Excellent video, thanks so much for taking the time to make it!
Glad to hear! :)
Finally!! The best video on spinal cord nuclei and tracts
Thank you so much❤
Thank you! Happy you found the video helpful 😊
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You deserve more views. I am sure your channel will reach, if you keep like this, at least 100k subscribers. Thanks
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Awesome video Brother, that was a very useful explanation of the topics about Spinal cord ..... we appreciate it .... keep going 👏❤
thanks a lottttt.... the anatomy of spinal cord and tracts always fears me alot, this video made it crystal clear...thanks again..
They can be overwhelming while studying 😂 You're welcome!
Much better and quicker job explaining this than med school professors!
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Fantastic video thank you
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Thanku so much brother 👍
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Finally understood this topic
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Happy to hear! ❤
EXCELLENT!!!
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I don’t know how can I thank you ♥️♥️
This comment is more than enough😊 Glad I could help!
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thanks alot
Thank you! It made sense now
Glad you found it helpful :)
So i prepared for this topic by watching this vid of yours & when the teacher called me up to answer & i told her that marginal nucleus could be found in the posterior horn of grey matter she said that i was wrong. However, i ended up getting a 7 so thanks a lot!
Hmm that's weird 🤔 marginal nucleus should be in lamina 1 of the gray matter, which is very posteriorly located on the posterior horn. Would appreciate it if you could send me her source, so that I can ammend this video if im convinced. Anyway congrats on your grade! 💪🏽 glad you found this video helpful 😄
Thank so much 💝💝💝
Amazing 👏
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this was perfect, thank you
now I just need to pass the exam
Thank you very much
I was literally crying over CNS as med student but this video helped me so much thank you so much
thank you so much.
Great effort to make videos
First of all Thank you for these video 🤍 .
In 21:21 in number 1 on the table is cuneate fascicles, same In number 2 is gracile fascicles
Thank you for pointing that out! I've written a little note in the description :)
Thanks . Great
Best videos ever, keep doing it, I’ve learned so much
Glad to hear! =)
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But i wanna ask whether ur video cover's every topic or its just some imp once??
Thank you so much! 🥳❤️
I try to go through everything in anatomy, so far I've covered most topics (check playlist on the channel), trying to cover the PNS and cranial nerves now. If you have any wishes for a specific video/topic, dont' hesitate to ask 😊
@@TaimTalksMed thank youuu
This Is Scary As I Am Watching This Video I Am Very Happy And Feeling Very Blessed I Did Not Break My Back Or Spine When I Slipped And Onto A Wet Tile Floor And Broke My Head And Hit My Head Face On The Tile Floor Thank You So Much For Sharing Your Beautiful Animated Very Interesting Video @ TaimTalksMed 👍👍
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Glad you found the video helpful! :)
Thanks...
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ربنا يكرمك
Nice
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Hi
Sir I think you have change between fibers of lower and uper of body in the second table
And thank you very much it was very helpful
Thank you for pointing that out! I've written a little note in the description :) Glad you found the video helpful!
Ammmaaaazzinnnggggggg
Hi I have a doubt, are the extrapyramidal tracts responsible for fine co-ordination of movements (18 mins) or are they for the movements which we don’t really give a thought about (12min 6 secs) because it is contradictory in both the above mention time seconds.
Hi! I should've specified it a bit better, but both are essentially what it does. Extrapyramidal tracts are in charge of quick, smooth, and automatic movements that we don't consciously think about, like maintaining balance and coordination. Hope that helped. All the best 😊
why are all of our anatomy teachers so incompetent that we are genuinely moved by how easy to understand these are?
I think it's very different to teach a classroom from teaching through an animated video like this one. I'd have to remake the whole video into a presentation if I were to try to teach a classroom, which would make it a bit less engaging. Everyone have their own way of teaching 😊 Happy you found this video helpful though! ✨
Just wow
And can make video on brain and hemisphere please ❤❤🙏🙏🙏
They'll be up in 2 weeks time 😄 Really happy you're finding the videos helpful 💪
One question is eating nails a voluntary movments ? because I think I do it unconsciously...😂😂
And something else in cornu anterior we have a lot nucleus like : anteromedialis, posteromedialis, anterolateralis , posterolateralis, and nucleus centralis all this nucleus supply muscles of trunk (anterior and posterior) , flexor and exstensor of limbs and the last one supply diaphragm✌🏻
I think you made a mistake when explaining about the tr.tectospinalis!
In my book it’s written that the tr.tectospinalis is for reaction movement and reflex
Can you double check it?
Hey Ali! Youre absolutely right :) It is responsible for reflex postural movements in a response to visual and auditory stimuli *and also* coordinates head and eyes movements in visual pursuing. In a way you can think of the neck movement reacting to the visual stimulus in this video.
I didnt wanna go deep into these tracts yet as Its only a spinal cord video. I do go detailed into these tracts the closer we get to their source. much love bro 🙏
@@TaimTalksMed got it! :)
I’ll have an exam in CNS this month, now I reached the medulla but it started to be confusing! These videos helps me so much respect bro!
Medulla up on wednesday 😁 glad these videos are helping 🙏
Sir can you also provide of notes
👋👏👏🙏
Neuroanatony isn't difficult
Credit;Taim Talks Med
Thank you so much