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Neurology | Spinal Cord: Stretch Reflex | Muscle Spindle
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- Опубликовано: 15 окт 2020
- Official Ninja Nerd Website: ninjanerd.org
Ninja Nerds!
In this lecture Professor Zach Murphy will present on the spinal cord stretch reflex, in addition to a detailed discussion on the components of a muscle spindle within our Neurology playlist. We hope you enjoy this lecture and be sure to support us below!
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Some heroes don’t wear capes. You are a superstar, Zac. Thank you for making me pass physiology, med school would be considerably harder without you!
I'm 3rd year med studet and your videos are very helpful. Every good medical material is paid and many student can't afford it. So thank you, and please don't give up🧑⚕️🩺
Your neurology play list makes me stay ahead of my class. Much love zach
ruclips.net/video/Xzt7zTdCmpg/видео.html
@@mydoctorhealthyzonedrAnubhav qq
Love your teaching zach🤩🤩 Thanku so much hats 📴 to u👍👍👍
at this point this guy is doing social sevice for us and we appreciate it.thankyou
i can't imagine how a Med student's life would be without you!!!! tysm 💛
Hey Zach. In your older videos you used to put the entire whiteboard on the screen for a couple seconds at the end of the video. It really helped for revision. Can you start doing that again please?
That's what I'm needing rn.
👍👍
I don't know what I'd do without your lecture videos! I will never find a better teacher than Zach! Thanks a lot for your efforts! 🙏🙇🏻♀️
Finally an indian 😀
Extrafusal fibers-
Connect with tendon
Generate movement.
Intrafusal fibers-
Proprioreception
Length and velocity.
Nuclear bag fibers-
Length and velocity
Type1 a fibers
Annulospiral ending.
Nuclear chain fibers-
Length
Type 1a and type2 a
Flower spray endings
Nuclear bag-
Mechanical gated ion chhanel
Voltage gated ion chhanel.
Deep tendon reflex-
Muscle spindle/ intrafusal fibers
Type1 and type2 a
Drg
Motor neuron
Muscle contract
Ipsilateral monosynaptic reflex.
Muscle spindle
Drg
Sensory neuron
Interneuron INHIBITORY
Inhibit motor neuron
Inhibt skeletal muscles.
Poly synaptic neuron.
Reciprocal inhibitions
Corticospinal tract INHIBIT gamma motor neuron.umn lesions
Hyperactive
Hypertonus
Spacticity.
Alpha gamma coactivation.
Thank you sir
Thank u to u too
That was like a quick revision..Thank you 😇
Thank you!
Extrafusal fibers connect with tendon.... and intrafusal fibers connect with??
@Marco Di Paolo intrafusal fibres,are modified muscle Fibre so I think the are connected in the same way and change their length with the whole muscle.
I’ve been starring my notes for hours til i found this. Thank youuuu
Whenever my physiology gets hard, the first thing my mind tells me is,"go watch a ninja nerd video!".... Thank you so so so much for explaining quite well in every video... Your videos make learning way less stressful... Thank you Zach
your an amazing human for how your helping us med students , alot of med unis never bother to upload decent slides or lectures to explain anything so thank you for what your doing to help us students become what we want to be
I love your passion for the content as it allows a guy like me who is ADHD grasp such high yield info in fun way! I will never forget the alpha-gamma-coactivation because I know when those nuclear bag muscle fiber endings contract those Type I-A sensory neurons are activated because, "they tight baby!"
What can i say man. Love the way you are dedicated to teaching us. Literally saving me from mental breakdown. ❤
It took me hours to read and reread the chapter in my book and still don't understand. Thank God I found this video. Everything is clear now. ^u^
I would have been so ahead of my professors and class if i had found this channel earlier
Much love Zach❤ keep up the great work
Thank you so much for these lectures. Im in medical school right now and I use these lectures to better understand whats written on my very very complicated Physiology textbook. Cant stress it enough, THANK YOU 💯
You are so gifted to be this clear by explaining things. I found your videos so helpful. Such a great job 👏
I´ve been struggling with physiology the whole semester and you saved me. Thank you so so much for your videos!
Thanks for restoring back the student in me.. your neurology videos are Soo firee🔥🔥
Thats awesome...no one can explain it simpler
Thank you for existing!!...you make it so easier to study❤
"Sodium will be like "Uh-uh baby, I'm coming in!" 🤣 You made my day! Thank you!
I'm seriously so stunned you don't get 300k+ views per video. Damn algorithm! This is definitely the most top quality and simply explained info I've seen.
Finally this video cleared my concept of stretch reflex that was bothering me a lot , love and respect from my side 🙏
Thank-you! I have watched a lot of your videos and they immensely helpful with a touch of humour. I know some doctors teach so imagine you will be teaching at a university if not already. Your videos are medicine as they help me to understand which relieves exam stress and lowers blood pressure. :) The world needs more people like you.
Another improvement that Allah does exist, and he is the best creater and the best one planning
this is an artwork thanks a lot ninja nerd staff
Beautifully explained, as always Zach. You're a life-saver!
looking for an hour in book...did nt got anything and here got satisfied in 30 min..😍☺🤗🤗🤗🤗🤗
Right on time for my MSK/Neuro test. You're the man ❤️
Ninja motivated me to start my own channel. Love you bro ❤️
I am so happy that you added neurology playlist when i am taking it 💗💗😍
I just need to send you some love ❤️
This channel makes information so easy to digest and consolidate!
I've just got here. I'm from Kenya. I'm ancient...63! Because I never had a chance I always felt I missed out on school. You guys are brilliant. I love this video. It has really helped me feel brave about learning.🙏🏽 From my heart
I love you Zach❤️...wanna hug you😭😭, your videos are so awesome, as always
On point with my syllabus. Much love ❤️
Wouldn’t pass neurophysiology without you. Thanks!!
His neurology list makes me great in neurophysiology.🥰
I got 98 in neurophysiology thanks a lot Zach😊
you are just amazing in making complex stuff so clear and understandable!!! out of this world!
wow, quarantine lookin' good on this guy.
i literally bow down to you because of your educational videos. you are helping me so much through university right now
there is no one on youtube (or even my university) with the level of clarity and knowledge that you provide man, you are the GOAT
greetings from argentina
Haven't seen it yet but I'm sure it's awesome! Gonna watch it later after your playlist on Respiratory. thank you sooo much!!!! xoxo
YOU ARE THE KING of NINJAS !
if someday I die and Zach asks for my organs pls give them to him. he's a lifesaver
Spinal cord reflexes are simple behaviors produced by central nervous system (CNS) pathways that lie entirely within the spinal cord. The sensory afferent fibers that evoke these reflexes enter the spinal cord and activate spinal motor neurons directly or through a chain of one or more spinal interneurons.👍
Thanks Ninja Nerd! You explain science far better than any of our professors!
Thanks for making it simple
Thanks Zac. This is life saving
You’re the best as always you made it very clear
I hope if you can start doing step1 Usmle lectures .
Thank you for a well explained video!
Thank you for existing
YES! This was the best video I've found that explains these fibers in a complete way! TY!
i wish i had accessed to your vdo during my med school years .... i had to read several pages in ganong and still could understand the concept at that time.
Thanks bro .
Literally sooo helpful 🙇🏻♀️
Thank u soo much Zach!!!!!!.... U are indeed a saviour to all of us!!!! As I'm running short of time, needed to grasp all this concept, and I was able to do only with ur help!! Means a lot man!! U always rock 🤘and ur team too... 😇😎🤩
You are my hero! All your videos are so detailed and easy to understand! The best!!!!! Seriously the BEST!!!
Been waiting for videos on reflexes!! Thank you!! 🥺❤
I really like the way you explain with the drawings and evrythinh it's really fun to listen to your video :)
idk you're like my big bro who always has my back in med school
thanks for doing what you do. you're awesome!
To aid in understanding this video - keep in mind STRETCH in Neuro Muscular Function Physiology can mean either contraction or Relaxation.
In essence it means Stretch = change in length of a muscle fiber - it ccan legthen as well as Shorten.
Such a great video! Thank you for making multi-modal learning accessible to everyone. I wish my Professors lectured the way you do!
I'm watching this video just before exam 🥲
Thank you Sir 🙏🏻🙂
this is so helpful. Thank you so much!
wow this is not an easy concept to wrap your mind around! you make it bearable! thanks so much!
Such a great explanation. I was really lost before this video. Ty ❤️
Yh same...My medical school did such a bad job explaining this stuff
Brahmin 🥳
Thank you for your lectures. I get to smile while studying.
Good to see you guys again. Your videos help me alot during quarantine. Thank you for beautiful lectures. ♥
You videos are really helping me go through my Physiotherapie education. Really great explanations. Thank you!
Iiiii looooove youuuuuuuu guys ..Teacher Zach! you're my Angle my Herooooo ❤️❤️❤️
thanks bro! now i'm capturing everything just because of your help. Thanks indeed.
wow!!! bro, you have lost so much weight!! that is amazing!! congrats and of course great video as always :D
Man, you're brilliant! I don't know if I'm learning or entertaining myself :P
Thank you so much sir 😊
Love from India
Um really grateful for you in neurophysiology module 🔥🔥❤️ , thanks so much
Damnnnn
I have been studying this topic for past few days but hardly understood something .
You made me understand the topic , thank you man
This is so helpful!!
I have an exam tomorrow and I was confused about this topic. Thank you for your clear explanation, especially about alpha-gamma co-activation!
Thank you sir 👍!
Amazing explanation! I literally got to understand this materials for the first time.
Ninja Nerd Lectures
Go ahead zach ...your followers with you and supporting ...good luck... ✌️
Thank you very much !!!
You are the best Doc
Finally got the concept . Thank u zach ! Lecture was ultra pro max awesome 👏.
So amazing video. Thank you
You are always the best! I shall request a video about concussion. I will greatly appreciate if you could explain what happens to brain tissue, and why such symptoms happens, as you explain with anatomy and physiology of brain.
Thank You Zach
They TIGHT baybeh!
Awesome video bro, this helped so much
Sir you are Lord and You are my fav Professor ❤
Explained nicely ...made all facts easy to understand
Thanks a lot for teaching us
Such an amazing way of imparting knowledge. Keep going.
Thank you so much.tomorow is neuroanatomy exam, really this lecture id helpful.
Great explanation sir❤❤ thankyou
Gurudev, thank you very much.
Finally got the concept of muscle spindles thank you
Super clear! Thank you!
Please make more videos on motor physiology i have exams in few days and i am addicted to your videos
Thank you so much. This is great!
thank you sooooo much. italian medical students love you