Neurology | Trochlear Nerve: Cranial Nerve IV

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  • Опубликовано: 10 фев 2025
  • Official Ninja Nerd Website: ninjanerd.org
    Ninja Nerds!
    In this lecture Professor Zach Murphy will be discussing the trochlear nerve (cranial nerve IV). We go into great detail on the origin, course, structures supplied, and the function of this nerve, along with clinical correlations. We hope you enjoy this lecture and be sure to support us below!
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    #ninjanerd #TrochlearNerve #CranialNerves

Комментарии • 120

  • @dr.evannie665
    @dr.evannie665 7 лет назад +132

    As per normal, I learnt a lot, please continue making videos. If you want to stop, make sure it's after I'm finished with Med school

    • @NinjaNerdOfficial
      @NinjaNerdOfficial  7 лет назад +54

      +Evannie Edwards Thanks so much! And we don’t plan to stop anytime soon, but we are so happy we are able to help you with med school!

    • @karlagarcia4141
      @karlagarcia4141 6 лет назад +4

      jajajajajaajja

    • @Sachin-wb9bg
      @Sachin-wb9bg 4 года назад +3

      @@NinjaNerdOfficial you r Best sirrrrrrr... Love you from India 😍😍😍

    • @vicentedominic2753
      @vicentedominic2753 3 года назад

      Pro trick : you can watch movies on Flixzone. I've been using them for watching all kinds of movies recently.

    • @amounika3535
      @amounika3535 3 года назад

      Wonderful sir!!!🙏🏻❤️in love with ua subjects 🥳

  • @tlampful
    @tlampful 11 месяцев назад +1

    Great teaching! I almost got lost at 07:02; thanks for the clarification!

  • @tomweed24
    @tomweed24 3 года назад +10

    I've never seen somebody's being so fired up about anatomy! I learn a lot from your videos. Thank you and keep us inspired!

  • @sheemakhan1394
    @sheemakhan1394 6 лет назад +14

    What an excellent series of videos. You have a remarkable way of explaining the detail in such a clear and concise way while at the same time not sacrificing on the detail. You make learning such complex topics so easy. Thank you very much.

  • @himanshuambilkar4160
    @himanshuambilkar4160 4 года назад +7

    Trochlear nerve-
    At the level of inferior oblique.
    Other structure same as CN 3 but this nerve Crosses.
    Longest course in cranial cavity
    Same course as CN 3. And it runs on nasal aspect of orbital cavity
    Attached Superior lateral posterior.
    Function-
    Intorsion of eye ball
    Depress eye ball
    Lateral rotation.
    Lesion-
    Extorsion and upper eyelid.side.
    Visual field- normal by moving head to unaffected side.
    Ica aneurysm
    Pca
    Meningitis
    Trauma.
    Thank you sir

  • @anadepina7051
    @anadepina7051 5 лет назад +11

    You are helping so many medical students like me!! Thank you!!!

  • @debistutisaha4170
    @debistutisaha4170 6 лет назад +16

    Amazing...like too good...easy to understand, fun to watch. Anatomy could never get more interesting than this. Keep up the great work guys

  • @fatimamuhammad3606
    @fatimamuhammad3606 4 месяца назад

    How can i actually like this a million times😩.. you're a blessing in disguise really..i have no enough words to thank you!😭♥️♥️♥️

  • @PrakritikaRai
    @PrakritikaRai 11 месяцев назад

    You are such a blessing to us! It has been so much fun to learn these stuffs all because of you!!! Thank you so so much! 💜

  • @aarideou
    @aarideou 3 года назад +4

    Teaching is a gift! So many professors know this stuff but suck at explaining it to students. You really break it down!

  • @thefarmingnurse
    @thefarmingnurse 3 года назад +1

    Just found my new subscription as I’m finishing nursing school and all my pre-nursing GEs are so old,

  • @gul60
    @gul60 3 года назад +5

    I am binge-watching your neurology videos and your explanation is extremely helpful Zack.Thank you so much to you and your team.

  • @stephenlentsa7479
    @stephenlentsa7479 6 лет назад +5

    life made easy!!!! crystal details and super simplified... thank you so much... wish you were my professor

  • @Nahuali_Papiani
    @Nahuali_Papiani 5 лет назад +13

    To my best profesor/teacher/tutor 🏆🏅🥇🎖 (Zachary)
    p.s. please, please do a playlist with antibiotics, antivirals, antimicotics, antiprotozoa, etc
    love u guys! ♡ [no homo] saludos desde Chihuahua.

  • @kellykucin9791
    @kellykucin9791 4 года назад +1

    holy moly this AWESOME!!! Thank you so much, riveted to the video. I'm an Occupational Therapist in inpatient rehab, see alot of stroke and head injury patients with CN 3, 4, 6 impairments. This lecture really solidified my understanding of neuroanatomy and function. Grateful!!!

  • @seyoumalemu357
    @seyoumalemu357 5 лет назад +4

    you are Genius and intelligent. thank you for Wonderful teaching Methode and style

  • @AZMaguire
    @AZMaguire 2 года назад

    Thank You so much. I was just diagnosed with Cranial Nerve IV. This has helped me to understand more about this condition. Hopefully the doctor I see can help.

  • @jazbakainat1301
    @jazbakainat1301 6 лет назад +6

    This is so simplified i wish u were my professor ❤️❤️❤️❤️❤️❤️❤️

  • @nanditarao941
    @nanditarao941 6 лет назад +2

    Thanks a ton... was super confused about how the intorsion and extorsion worked and now its crystal clear!! learning loads! keep it up :) :)

  • @rachmawatiwardani5560
    @rachmawatiwardani5560 4 года назад +1

    2020 and still repeating this video, it is very useful!!! thank you so much :')

  • @onlymemary
    @onlymemary 5 лет назад +2

    Your teaching skills are amazing! Thank you!

  • @marcosluna7792
    @marcosluna7792 4 года назад +1

    Thanks for this! Wonderful videos. I'm learning so much

  • @tarapoostchi4410
    @tarapoostchi4410 6 лет назад +3

    You’re amazing! Great and clear explanations and a life savor. Please keep going ✌️🙌🙏👏

  • @НуховаМарьям
    @НуховаМарьям 9 месяцев назад

    Thanks a lot! Amazing presentation of the information. Drawing is the only way how I can remember neurology.

  • @palmereldritch_6669
    @palmereldritch_6669 3 года назад

    Seriously, you are far better at explaining things than my professors, and they make an awful lot of money from me

  • @saidnassr9963
    @saidnassr9963 4 года назад

    Who dares to dislike such an artwork... Great job man! Nice and informative video 😊

  • @047-aparnadeepgupta6
    @047-aparnadeepgupta6 4 года назад

    Thank you again and again and all over again. You're the best person on earth❤️😁

  • @LoversGrief
    @LoversGrief 4 года назад +3

    I always remember LFT as LEFT, and it does indeed lies to the left of the plane of the left eye. It works for me.

  • @syedafatimanaz2501
    @syedafatimanaz2501 2 года назад

    You're awesome Sir. Prayers from Pakistan

  • @chideraejidike
    @chideraejidike 2 года назад

    again so much help with the cranial nernes thanks a lot

  • @ainembabazigillian6608
    @ainembabazigillian6608 2 года назад

    Your are whole package,thank you 🤝

  • @Radiantreign1223
    @Radiantreign1223 4 года назад

    This is my 9th video from ur neuroanatomy class...it something wow........
    Superb sir...........
    Sir can u pls do..splanchnology like this neuroanatomy......

  • @ghulamnabipathan4347
    @ghulamnabipathan4347 2 года назад

    Thanks dear Ninja
    Very nice presentation of cranial nerves.

  • @BalwinderSingh-zc8nw
    @BalwinderSingh-zc8nw 2 года назад

    Excellent. I have no words.

  • @vaishnavishastri5115
    @vaishnavishastri5115 4 года назад

    man y is ur views so less and mainly the way of explaining clinical anatomy n physiology is very nice love ur classes...... ur amazing...

  • @mithunperera5713
    @mithunperera5713 4 года назад +1

    Complete lecture.thankyou verymuch

  • @melisaoktay8846
    @melisaoktay8846 2 года назад

    Again, a very well structured and good explained video, love it thanks !

  • @beshoyamir
    @beshoyamir 3 года назад +1

    IV Palsy:
    19:00

  • @jasonmoloney2279
    @jasonmoloney2279 5 лет назад +1

    Nice work mate - really appreciate he effort and learning

  • @aymanadel3022
    @aymanadel3022 5 лет назад

    You are a genius as a professor

  • @calyneyaranon3571
    @calyneyaranon3571 4 года назад +1

    I learned a lot!! THANK YOU!

  • @ramseyflores6692
    @ramseyflores6692 4 года назад

    Suffering from 4th cranial palsy.. you're awesome man.. I'll see what happens Tuesday

    • @waqasahmedpak
      @waqasahmedpak 2 года назад

      Hi ,how are you now finish your 4th nerve palsy?

  • @kavidangalla6163
    @kavidangalla6163 3 года назад

    Thank you so much for your amazing service 💜

  • @cristina7718cristina
    @cristina7718cristina 3 месяца назад

    Thank you so much! ❤

  • @neethap7202
    @neethap7202 4 года назад

    Lovely video! One small correction: In the optic canal, the ophthalmic artery accompanies the optic nerve.

  • @Hundred_tales
    @Hundred_tales Год назад

    Thank you so much😊

  • @abelmanojabraham1681
    @abelmanojabraham1681 6 лет назад +4

    There is another mnemonic RAD/SIN -- Recti adduct and superiors intort. All the muscle actions can be learnt from this simple mnemonic

  • @farh2703
    @farh2703 9 месяцев назад

    Really the BEST ❤❤

  • @monisha7967
    @monisha7967 6 лет назад +1

    thank u so much sir👏excellent video👍🙏

  • @tomasvalencaferreira4143
    @tomasvalencaferreira4143 4 года назад

    Thank you for your videos! Just a small correction, internal carotid artery don't go through foramen lacerum, just passes tangencially.
    greetings for Portugal

  • @neginmm1416
    @neginmm1416 Год назад

    this was amazing

  • @rodneycackermann800
    @rodneycackermann800 3 года назад

    We have a situation here where a young man was brutally attacked. His trochlear nerve was damaged. He presents exactly as you describe. We have no medical background and limited access to medical services.
    Thank you, your video helped us understand. What is the likely prognosis for a full recovery and how long could it take?

  • @mannsandhu5953
    @mannsandhu5953 6 лет назад +1

    Great job😇
    Thanku so much

  • @turkersoykan5695
    @turkersoykan5695 4 года назад

    Ninja, sağolasın! 🙏🏽❤️ Ninjanın askerleriyiz, ninja kardeşimizi yedirtmeyiz, ey avrupa duy sesimi

  • @dannac_8888
    @dannac_8888 4 года назад

    I didn't even watch it and I gave it a like because I'll watch him in a big snow storm in bed here in the NE.
    THANK YOU IN ADVANCE
    🌞

  • @varundagdiya542
    @varundagdiya542 5 лет назад +1

    Wow!
    Thank you so much

  • @rezvanr3078
    @rezvanr3078 4 года назад

    This was really good 🤩 thank you so much 👌🏻🙏

  • @renukabangar6620
    @renukabangar6620 4 года назад

    Great video
    Thank you sir

  • @vedatekin97
    @vedatekin97 3 года назад

    thanks a lot, i love this channal

  • @amounika3535
    @amounika3535 3 года назад

    Wonderful sir🙏🏻🥳🤩

  • @saibhanu99
    @saibhanu99 6 лет назад +2

    You are just awesome ☺️

  • @mh21_ophthalmology36
    @mh21_ophthalmology36 2 года назад

    Great ...liked ur videos plz try to cover functional components of the Nerve also...thank you

  • @TheEngaged22
    @TheEngaged22 4 года назад +9

    6:57 haha "that's the pituitary not your balls"

  • @江冠霖-s2y
    @江冠霖-s2y Год назад

    thank youuuuu

  • @iqranehal8775
    @iqranehal8775 7 лет назад +2

    hey there!, thank you very much ,,it was really really helpful;;;:)

  • @mananchawda
    @mananchawda 4 года назад

    as always , amazing !!!❤❤❤

  • @melikaroustaei5063
    @melikaroustaei5063 4 года назад

    Best as usual 🙏🙏🌹🌹👌👌

  • @dochala8400
    @dochala8400 4 года назад

    U r a real legend 😭😭😭

  • @carlmorz
    @carlmorz Год назад

    nice one boss keep it up.

  • @thayerassaf5665
    @thayerassaf5665 7 лет назад +3

    Thank you so much for education on the trochlear nerve, my 5 month old girl was just diagnosed with a trochlear nerve pulse, i don't want to believe it, however i want to see if there any new studies or technology on fixing the actual nerve before we go into eye muscle surgery. Thank you

  • @yusra5833
    @yusra5833 8 месяцев назад

    amazing videi

  • @ГузельГалеева-к7ч
    @ГузельГалеева-к7ч 6 месяцев назад

    thank u

  • @ishitm1663
    @ishitm1663 5 лет назад +2

    I guess anterior inferior cerebellar artery arises from basilar A. and not vertebral A. that u have mentioned

  • @amankumarsingh1482
    @amankumarsingh1482 4 года назад

    Fantastic

  • @emrankhan6578
    @emrankhan6578 2 года назад

    Bro do u watch Dr.najeeb lectures, ur lectures are similar to his videos. I watch both of u. Big fan.

  • @moonsharn
    @moonsharn 2 месяца назад

    I had an anterior communicating artery aneurysm rupture which caused an extensive brain haemorrhage I was flown to Melbourne for coiling. I’ve been told that My 4th cranial nerve is damaged. 4th nerve palsy. I have double vision and depth perception issues that cause constant nausea and injuries due to crashing into things.

  • @gurusingh3402
    @gurusingh3402 5 лет назад

    Thanks

  • @rosycherry5354
    @rosycherry5354 4 года назад

    Thank you o

  • @parri8486
    @parri8486 3 года назад

    Marvellous 😍

  • @josetrujillo738
    @josetrujillo738 4 года назад

    “Pretend here is my eyeball. Here is my beautiful eyelashes.”- Gotta acknowledge the beauty of the eyelashes, lol!

  • @Mission-Omega.
    @Mission-Omega. 4 года назад

    How cute! 😊✌ ✋ 👌 Carry on,Sir.♥

  • @salahaldinfarhat5691
    @salahaldinfarhat5691 4 года назад +1

    100% efficient.

  • @salahaldinfarhat5691
    @salahaldinfarhat5691 4 года назад

    great,just great.

  • @PrajwalSedain
    @PrajwalSedain 5 лет назад +1

    Superior oblique rotates the eye medially, doesn't it?. In that wat trochlear nerve palsy would lead to eye being lateraly rotated.

  • @MrHodophiler
    @MrHodophiler 4 года назад

    Perfect!

  • @tobiasalvarothomsen6556
    @tobiasalvarothomsen6556 2 года назад

    It gets a bit confusing when you get to the Bielchowsky sign, but besides that, nice as always!

  • @헤린송-o7i
    @헤린송-o7i 6 лет назад +5

    I LOVE YOU 🙆‍♀️

  • @gyuholee425
    @gyuholee425 5 лет назад

    Nice video~!

  • @Donut16367
    @Donut16367 6 лет назад

    The trochear nuclei lie ventral to the PAG, not lateral to it.

  • @karlagarcia4141
    @karlagarcia4141 6 лет назад

    Thanks

  • @Euduchaus
    @Euduchaus 10 месяцев назад

    Hey doctor, I have trochlear palsy, but if I close my non affected eye I can fully move my affected eye like there is no palsy. What could be the explanation? Thank you!

  • @bhavanatiwari9194
    @bhavanatiwari9194 4 года назад +4

    WHO like genuinely WHO disliked this masterpiece .

  • @rameshkrishnan3254
    @rameshkrishnan3254 4 года назад

    The common reason atleast in India is nerve palsy caused by Diabetes or by Vit B12 deficiency..

  • @flybynightgirl
    @flybynightgirl 2 года назад +1

    That's what my condition is. Intortion! Bingo. But it pulls my lids turning with all those three nerves.

  • @xXBballBoiXx
    @xXBballBoiXx Год назад

    King.

  • @barzifryad733
    @barzifryad733 4 года назад

    ❤️❤️❤️

  • @yoyo-zq6yi
    @yoyo-zq6yi 9 месяцев назад

    ❤❤

  • @yaseenalbrir2892
    @yaseenalbrir2892 2 года назад

    ❤❤❤❤❤❤❤

  • @richatripathi9423
    @richatripathi9423 4 года назад

    💛💛

  • @diosfccenmio
    @diosfccenmio 6 лет назад

    Easy! ...compared to the trigeminal.