Neurology | Spinal Cord: Gray Matter Structure & Function 

******CORRECTION***** at 32:31 I stated that the preganglionic parasympathetic motor neurons that occupy the interomediomedial nucleus at S2-S4 supply cardiac muscle. THAT COULD NOT BE MORE WRONG!! I must have had a huge brain fart when I wrote that!!! Very sorry Ninja Nerds!!! TO CLARIFY!!! Cardiac muscle is ONLY supplied by preganglionic motor neurons of the sympathetic nervous system from T1-T5 spinal Cord level and the Vagus nerve which is Cranial Nerve X is the parasympathetic supply to the cardiac muscle. SO to end it all off, S2-S4 preganglionic motor neurons which occupy the Interomediomedial Nucleus ONLY supply Smooth muscle and Glands!!! Alright Ninja Nerds sorry again!!! Hope this makes sense and clears up any confusion!!!

Zach. I just wanted you to know, you are simply an amazing man. To make all these videos for free, to educate people who arent able to pay for tuition fees, and to keep on posting videos with that enthusiasm, I salute you. Please never doubt yourself and never feel discouraged. I managed to pass in my exams because of you. I began to understand more about the human anatomy because of your dedication in posting these videos.

Posterior grey horn Anterior grey horn Intermediate zone- Lateral grey horn T1- L2. Posterior- somatic sensation Visceral sensation. Anterior - visceral motor Somatic motor. Rex lamina. 1.posterior marginal nucleus. 2.substantia gelatonisa of Rolando. 3;4.nucleus proprius 7.clarkes column Interomediomedial Interomediolateral 10.axon cross gray commissure. 9.lateral-C5-T1 and L2-S3. Cervical and lumbar enlargement. Central phrenic nucleus C345. Accessory spinal C1-c5.scm and trapezius. Onnes nucleus- S234.spincter anal and urethral. Onnes nucles Lateral- distal Central- proximal. medial- axial. Lamina1.posterior marginal nucleus Pain temperature Fast fibers Adelta. Anterior lateral spinothalamic tract. 2.substantia gelatonisa of rolando- Slow pain . Anterior lateral spinothalamic tract Spinal trigeminal nucleus. Pain modulation. 3;4nucleus proprius- Apin touch vibration propioception. Dorsal column medial leminisus pathway. 5.pain, Temperature sensation from visceral . 6.ventral spinocerebellar tract- L2- Co. Proprioreception Limb reflex. 7.intermediolateral T1-L2. PReganglionic motor neuron Gland Smooth muscle. Interomediomedial nucles s24. Parasympathetic PReganglionic . Clarke's columns-C8-L2. Dorsal spinocerebellar tract Proprioreception. Lamina8. Subcortical tract relay Rubrospinal Vestibulospinal Recticulospinal Tectospinal Thank you sir

As a high school anatomy teacher I love watching these videos even though I don’t go nearly as far into depth. Thanks

I am going to share these videos to as many students as possible...because you have been a life saviour for we medicos in these tough times...🤩🤩....truly speaking I literally have been binge watching your playlists...thank you Zach for being there🥺😍

I cant suport you guys with money but each time you guys upload Im going to drop a like. Keep up the goos work

simply awesome, straight forward, nice for repetiition as well, as you give time to answer before resolving, clearly structured, detailed enough without overloading. You are an inspiration. Simply awesome!

I'm not studying this yet but every time you upload a video I just drop a like so I won't forget once I study from it

Zach I just wanna give you a hug, man 😂 You guys have helped me for so many years; all throughout college and now med school! One day I'll be able to contribute financially but I promise I'm sharing this channel with as many students as possible! Thank you!

All I can say is WOW. I would hope more learn to teach like this. Clear, concise and clarity. Thank you

unbelievable! just when I started studying neuranatomy in med school your videos popped up and helped me so much.THANK YOU A LOT , i am sure that you help a lot of us who search for help

I think I m gonna thank you in my thesis. You seriously did more than my professors in these years🙏

Thanks for another SC lecture. Love ninja nerd science! Dr.Zach you are an absolutely awesome teacher. Love your mind and skills. Keep helping students worldwide👍 Looking forward to spinal cord lesion video.

Man everything is coming together so neatly. Notice the playlist organises eacb segment which eloraborates and builds on the next one, like a tangible body of information to step upon akin to solid ground. The explanations are so indepth, with about 30 notepads and a few pens, you can copy everything a few times over and learn an entire university course worth tens of thousands of pounds or dollars in your own local library or bed room. I just think this man is amazing, to rember this amount of specilised knowledge then explanatorily communicate it so the mere mortal humans such as ourselves can innerstand this speckalised knowledge.

I don't know if i'll have all the time to watch those vdos before exams but surely I'm absolutely going to watch all of em later cause they're just amazingly exhaustive ❣️

I can cry over this BEAUTIFUL video🤤...Man UR AMAZING...I adore you for your easy peasy lectures made of MOST difficult lessons!!!!

It's the best channel for those who have lost the base for any topic like its been taught yrs ago but here this man will really help u...like so much... Can't thank enough❤❤

Thank God for your lives, Ninja Nerds! Our Neurology course in medical school is so much EASIER because of you. Much love from the Philippines!

I am like 😍 when i receive a notification from ur utube channel u r absolutely the best

Thank you Zach. You are gift from the heavens.

Im so grateful for these videoes. I really wished my teachers were like you. Thank you NinjaNerd

Regarding the gray matter and tracts,the best explanation i have ever had...thanks a lot Zach...

Immensely proud to learn the you explain here in books it’s so confusing and complicated!! feelings confident 👍🏻

As a nursing student, you are absolutely saving my ass in anatomy and physiology. I thank you for your noble work

Thank you so much for such lectures... It literally saves our time.

Been studying these playlists for my neurology residency entry exam next week. Thank you Ninja Nerd for the amazing and detailed explanation. Wish me luck guys :)

Really informative and concise, thanks ❤️

U r such a great inspiration to me sir my dream is to see u atleast once in my life time btw excellent video I understood it easily

Thank you for motivating me, thanks a lot for saving my life from falling!

I have started ur biochemistry lectures it's absolutely easy to catch the idea. Thank u so much SiR❤

amazingly explained! it can't get any better. thank you for your hard work

Thank you so much Zach for your knowledge and awesome skills in teaching!!! One day, when i become a doctor, i’ll be forever grateful for your videos. I love you ninja nerd!!! ❤️ Keep doing what you do coz you’re so awesomely fucking good at it. 😘

Holy wow.. this is very comprehensive and well-summarized Thanks a lot 👍👍

Your lectures have been very useful to me..i really want you to post more on pathology and microbiology

I used to call myself an anatomy buff, but my knowledge of the CNS stopped at cerebral landmarks and nuclei, and large nerve plexus and bundle groups - the spine has always been a blackhole of knowledge for me and spinal cord features feel like a whole new world to explore. 🤯 Wow, this was a great vid - I'm glad I joined your patreon. 🙏

If I had a neuroanatomy teacher like you, I'd have been a trained neursurgeon since the age of 6.

great work... thats a deficult subject but you make it very easy so thank you 💜

Thank you sir for sharing these kinds of videos for medical students!

Thank you so much Zach ! You are an amazing tutor ! You are great, you are the best. One of your many fans here, in Bulgaria, in Sofia University

Thanks Zack, you are really wonderful.

Thank you so much for the videos sir you are just a great teacher as well as a great man

I've never hit the like button that hard in my life. Thank you!

Thank you so much need cervical fusion and this helped me understand my symptoms and enjoy learning.

You are awesome to the core. I love your videos. Keep the good lectures going!

You explain all this way better then my son’s neurologist! Thank you 😊

Thank you very much🙆 I really hadnt had any idea on how i can get to know these stuff

Special thanks for your kind illustrations of those hard topics we are struggling with all times 😅

Happy teachers Day to you🥰 I got my concepts clear by you 😭❤️ Thnku so much for your informative lectures❤️ I owe my success to you🥺❤️without you I am nothing💕

Great teaching!

Man you’re awesome! Love the way you teach!!!🌷💪👌 .. thank you!

Looking good, Zach!!! Keep up the good work and thanks for the video!!

from the bottom of my heart thank u so much 🙏🙏🙏

I like so much ur method of teaching forever u will stay my favorite channel youtube

DIVE IN DEEP, god bless you for these

You always make my days easy

Absolutely enjoy your videos

Another killer video!

You are litreally amazing, thank you.

Not currently studying anatomy but gonna have to do this in coming months but still wanna support the channel,so playing this video on all my devices

Hey my lecturer I'm from Ethiopia ....I'm so like ur way of explanations and briefly discussion.... So go ahead .... Your so enough smart lecturer

You are perfect thanx for anatomy info:)

Amazing! Thank you

I cannot like this video enough! Thank you, thank you, thank you! Does supporting your channel count as an educational expense according to the Dept. of Ed? 😅 You honestly deserve the money more than my school/lecturers because I learn so much better from your youtube lectures than their Zoom lectures.

Great video covered more detail than my anatomy book

Just spectacular!

Excellent lecture

amazing lecture..

Good information of types lamina and bilious and functions

Love u sir out standing lectures and very kind and happy sir ❤❤

Thank you for this content

🔥🚀♥️✨ i cant believe u made all these hecks this simpleeee to learn! İ was struggling with them for several days... U guys are overqualified 😁✨

Thanks a lot sir....u help me a lot🙏🙏🙏🙏🙏🙏

Just to add to the list of praise for what you do Thank you very much - neurology (amongst other topics) isn't an easy topic to make a good video on

Thank you for the video

Amazing thank you

Thank you so much. 🙏🏼

it was very much helpful thank you very much

Thank you mr zach.

I'd listen to you explaining me anything forever

Omg i cant thank you enough, you are the GOAT 💞

Well done our teachers🌸

It's really amazing

You are amazing Ninja Nerd. Love from India

You are saint. Great job! I hope you can keep it up 😎😎😎

Thank's man you made my day 🥰🥰

Thank you!

It was very difficult for me to learn this topic ..so I always hated this...I was never able to fully understand it.But now thanks to you for the first time I got to understand everything and it's not difficult anymore.Now I find this topic interesting. Thanks a lot 🙏

"boom roasted"

Best zach thank you!

please make more videos on pathology & pharmacology......itll be helpful.....& Lots of love to u....❤️❤️🤘🤘

Happy world teacher's day to the best teacher 🙌💪❤️

i love this guy!

Thank you so much.

Thank you soo much sir, lot's of love from india 🇮🇳❤️.......i can't belive these videos are for freee❣️

Thank youu Ninja Nerd😍

you guys are amazing!

I thoroughly enjoyed the video, it was splendid, love from the med students of pakistan❤

Zach..u rock it bro❤❤❤

Ninja Nerd sei la nostra salvezza!!!! Tanto amore da Ginni e Ali.

best video on spinal cord