The best part of your teaching technique is It doesn't let fall sleep , I can watch continuously 2-3 videos without being bored or exhausted. Thanks mate .
I have watched many CZcamss and yours is my very first post. I thought it was outstanding. First, I am ADHD so it really helps to repeat words and ideas three times over. Also, I am usually driving and can’t see the board so it helps immensely to repeat and give my mind enough time to create a visual image. You tone is emphatic and you possess vitality which makes to sustain focus. Thank you very much!!!!yvette
We covered a lot in this video Zach! I really thank you for sticking in there! I really hope you continue to have positive feelings and experiences with helping people to learn! Sweet Deal!
Small detail: I've read from several sources that the fibres for the pupillary light reflex bypass the LGN and project directly to the pretectal nucleus.
I am amazed the way u teach sir Its really beyond amy appreciation. You r just so phenomenal i can really watch ur 2-3 hrs long videos so easily in a fun just bcz u enjoy teaching. Thanks a bundle huge respect from pakistan
If I have seen this 20 yrs back during my pgship in ophthalmology it would have been a great . However for my students it's working wonderful.Thank you man
Contacta con la Doctora Ani John para cualquier tipo de problema de salud. Es un gran médico herbolario. Me curé del virus de la culebrilla justo después de 14 días. Estoy agradecida y no puedo dejar de agradecer al Doctor su amabilidad y buen corazón. Siempre diciéndome que estaré bien. Muchas gracias ❤️❤️. También puedes curarte a ti mismo con estas mismas hierbas. Siéntase libre de visitar Dr.Ani John en CZcams en el canal..
I love your videos, thank you so so so much for them. Do you have any full images of the diagrams on the white board, so we can print them off, and revise from them?
**The pupillary light reflex doesn't involve the LGB it goes directly to the olivary pretectal nucleus in the mid brain which then sends signals to the Edinger Westphal nucleus near the superior colliculus on both sides.
thank you very much! I really love your videos!!!! I was wondering.... Maybe I have not completely understood the pathway, but in class we learned that the fibers that go to the superior colliculus and pretectal nucleus come directly from the optic nerve but not from the lateral geniculus. Can this be clarified please? I am confused because in the drawing it seems that the superior colliculus and pretectal nucleus receive fibers from the lateral geniculate. Thank you so much for your videos, they help a lot!
Good point. The melanopsin retinal ganglion cells that provide input to the pretectal nucleus synapse directly with the neurons in the pretectal nucleus (without making intermediate synapses with the neurons in the lateral geniculate nucleus). This is unusual since most retinal ganglion cells do synapse in the lateral geniculate.
What makes the nervous system "decide" wherever to go for the dilation of pupil or constriction of the pupil? What is the dynamics inbetween the sympathetic/paras pathways' activation/deactivation in respect to pupillary light reflex and eye accomodation? Thanx
+Belinda Flynn this is so awesome to hear! Thank you so much for the positive feedback we truly appreciate it and best of luck in your future endeavors.
Dr! How the eye knows that we see closer or deeper? Is light changes with the distance ? For example if i am looking at my hand and my pupills are in myosis because there is more light arround me, but if i look far away light will decrease so it will be in mydriasis?
I think there is obvious mistake...the fibres that mediate light reflex leave optic tract to pretectal area and NOT join lateral geniculate body at all as mentioned in the video
Then from the retina to the pretectal nuclei, there is ipsilateral distribution and from the pretectal nuclei to the edinger Westphal nuclei there is bilateral distribution and finally from the edinger Westphal nuclei, there is once again ipsilateral distribution to both eyes, Did I get it right? 😰
Thank you for this lecture! I wonder why people dont generally use temporal field or nasal field (instead use right or left); isn't it more intuitive when understanding anopsia nomenclature?
I wish that i have the time to watch your videos :( you are too smart and you make a great work, i know this video is awesome even though i didnt watch it so KEEP GOING 👍🏻👏🏻👏🏻👏🏻
The best part of your teaching technique is It doesn't let fall sleep , I can watch continuously 2-3 videos without being bored or exhausted. Thanks mate .
exactly
No falling asleep here-he keeps u engaged with those big brown eyes!
Exactly 😌
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Man, I ain't gay but I love you more than my girlfriend. Thank you for this!
Hahaha
now youre gay
Lol
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I don't think that thank you is even enough
Patreon
I have watched many CZcamss and yours is my very first post. I thought it was outstanding. First, I am ADHD so it really helps to repeat words and ideas three times over. Also, I am usually driving and can’t see the board so it helps immensely to repeat and give my mind enough time to create a visual image. You tone is emphatic and you possess vitality which makes to sustain focus.
Thank you very much!!!!yvette
What would I do without your brilliant and easy to get explanations sir?! Thank you so much!
I really don’t know what I would be without you guys ! Sending lots of love from Europe ❤
First of all , thanks you so much .
It makes me so easy to study during exams and you are very excellent in teaching .
We covered a lot in this video Zach! I really thank you for sticking in there! I really hope you continue to have positive feelings and experiences with helping people to learn! Sweet Deal!
😅
I love how you begin every video with a daily life activity pertaining to movies and TV series. That boosts me up & keeps me hooked :)
He is the best tutor one can admire to hv...long live ninja nerd💪🏾♥️
You are sweetest deal!! U made it so simple for me to understand
😍
Small detail: I've read from several sources that the fibres for the pupillary light reflex bypass the LGN and project directly to the pretectal nucleus.
I am amazed the way u teach sir
Its really beyond amy appreciation. You r just so phenomenal i can really watch ur 2-3 hrs long videos so easily in a fun just bcz u enjoy teaching. Thanks a bundle huge respect from pakistan
Loooooooooooveeeee thisssssssssss
Thank u so much sir its been 4yrs now but ur work still lives on for ages and ages to come ❤️❤️❤️❤️
You're my favorite CZcams tutor
You help me alot in med school👏🏾
This helped understand this special senses in a very short period of time❤
And I learnt a lot.
God bless you Zach
you are indeed a good tutor of all seasons. Ninja Nerd all the way🥰
just the best teacher EVER - thankyou from the UK!
Actually pupillary fibres doesn't reach the upto LGB... Before LGB they exit half way in optic tract and reach Pretectal nucleus.
Thank you so much for this AMAZING tutorial and fantastic teaching method!
Hey
I really don't know what i would do without u Zack...❤
Best teacher in the whole world. Great video. As always !!!!
you have helped me so much! wish you could do one on VOR - vestibooccular reflex!
He did it in semicircular canals video
You made it so simple and understandable, thank you :)
You are doing a humble job, Respect!!
If I have seen this 20 yrs back during my pgship in ophthalmology it would have been a great . However for my students it's working wonderful.Thank you man
MASTERPIECE 👏🏻
Bro being the reason of my survival in med school ❤
Best best ever lecture with so good explanation sir ..thanku soo much 😃
You’re welcome!
Every things are nicely explained and your lectures are knowledgeable enriching
What amazing you are . You teach better than all teachers who teaches me in the med university. 😍
You sir are amazing at teaching. You make it so easy. You are a blessing. Thank you a million
This is so explicit! Thanks a lot Zach for your effort.
Ppl like u needed fr medical fraternity .... god bless u ... ❤️ ur wrk ...keep up the great wrk
Best lesson ever! Thank u very much!
Contacta con la Doctora Ani John para cualquier tipo de problema de salud. Es un gran médico herbolario. Me curé del virus de la culebrilla justo después de 14 días. Estoy agradecida y no puedo dejar de agradecer al Doctor su amabilidad y buen corazón. Siempre diciéndome que estaré bien. Muchas gracias ❤️❤️. También puedes curarte a ti mismo con estas mismas hierbas. Siéntase libre de visitar Dr.Ani John en CZcams en el canal..
I swear I was just about to close my physio book and go to sleep but I’m glad I opened ur video
Your lectures are directly injected in my 🧠, by the way 🙏🏼🙏🏼
Bro, you put to shame the instruction i get when I spend $700+ on a course. Thanks for being awesome.
Hey Ninja
Thanks a lot for your great efforts
I love your videos..I can watch even 3 videos and the way u explain is on another level..keep it up
I love your videos, thank you so so so much for them. Do you have any full images of the diagrams on the white board, so we can print them off, and revise from them?
all the explanation was most the understandABLE !!
Yay! We are so glad to help!
Explaination and clarity of your subject is very good.......
This is so beautiful, whole topics in one. Thanks bro
You are a godsend.
Thank you from Nairobi
**The pupillary light reflex doesn't involve the LGB it goes directly to the olivary pretectal nucleus in the mid brain which then sends signals to the Edinger Westphal nucleus near the superior colliculus on both sides.
You’re the best teacher ever ❤
great videos! one question though, are the visual fields color coded correctly on both sides?
In-depth but well explained. thank you sir.
Best teacher ever! Thanks from Ecuador q👏🏻👏🏻👏🏻👏🏻👏🏻
thank you very much! I really love your videos!!!! I was wondering.... Maybe I have not completely understood the pathway, but in class we learned that the fibers that go to the superior colliculus and pretectal nucleus come directly from the optic nerve but not from the lateral geniculus. Can this be clarified please? I am confused because in the drawing it seems that the superior colliculus and pretectal nucleus receive fibers from the lateral geniculate. Thank you so much for your videos, they help a lot!
Good point. The melanopsin retinal ganglion cells that provide input to the pretectal nucleus synapse directly with the neurons in the pretectal nucleus (without making intermediate synapses with the neurons in the lateral geniculate nucleus). This is unusual since most retinal ganglion cells do synapse in the lateral geniculate.
THE best white board teacher thank you ninja nerd
What makes the nervous system "decide" wherever to go for the dilation of pupil or constriction of the pupil? What is the dynamics inbetween the sympathetic/paras pathways' activation/deactivation in respect to pupillary light reflex and eye accomodation? Thanx
Your videos are brilliant and have been a great help for my exam study. Thank you so much...
+Belinda Flynn this is so awesome to hear! Thank you so much for the positive feedback we truly appreciate it and best of luck in your future endeavors.
An actual LEGEND...
Thank you
You are a great teacher.
Thanks a lot it's very clear and informative video you deserve all appreciation
you are literally the best. thank you so much for your amazing videos.thank you thank you
Pls which textbook would you recommend for physiology
Dr! How the eye knows that we see closer or deeper? Is light changes with the distance ? For example if i am looking at my hand and my pupills are in myosis because there is more light arround me, but if i look far away light will decrease so it will be in mydriasis?
I think there is obvious mistake...the fibres that mediate light reflex leave optic tract to pretectal area and NOT join lateral geniculate body at all as mentioned in the video
Thanks sue to ur hard works we really get much information from ur videos
Yeap.. It does, the GVE fibers of the CNIII
Exceptional Presentation, Dr Naeem Ashraf
loved this lecture. thank you so much for making it easier for us.
Highly appreciate your work man!!!!👌
Good job professor !
This is so cool how the optic nerve react
You're such amazing human being!
Then from the retina to the pretectal nuclei, there is ipsilateral distribution and from the pretectal nuclei to the edinger Westphal nuclei there is bilateral distribution and finally from the edinger Westphal nuclei, there is once again ipsilateral distribution to both eyes, Did I get it right? 😰
Amazing explanation..
Thank you so much sir ..💙
From Pakistan
What do you know about Blepharospasm and how to correct that?
A Life Saver, you are. Truly. 👍👌
Excellent Presentation, Dr Naeem Ashraf
These videos are dragging me through neuro, thank you so much!!!
I was kinda wondering what books are you using as reference for these videos? thanks before:D
you are a hero....for us...thank you sir..regards from Kolkata
just no word as always much respect
42:27 i hope you are fine my friend,you are helping me a lot in my premed journey
Thank you so much for sharing the information. 😍
thank you for your effort
Thank you for this lecture! I wonder why people dont generally use temporal field or nasal field (instead use right or left); isn't it more intuitive when understanding anopsia nomenclature?
Amazing video, no mention of nerve lesions affecting miosis and mydriasis? Drugs, horners syndrome etc?
I wish that i have the time to watch your videos :( you are too smart and you make a great work, i know this video is awesome even though i didnt watch it so KEEP GOING 👍🏻👏🏻👏🏻👏🏻
Again... You are amazing.. Thanks alot
Sweet deal:) Thank you very much. So helpful and informative.
Just love your lectures dude😎
Thank u sir for such a great efforts
U r terrific .Plz make a vid on light adaptation ,optics basics for image formation &refractive errors.
You have really helped me understand ... thank you
That needs more 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍... Come on!!! That was an awesome lecture!😉
Sweet deal bruv. That example was epic, imagine a dog chasing you and you want to have multiple options.. 😇
Thanks a lot, wonderful and Consize presentation
Great lecture 🎉🎉
Very very interesting and clear🥳
Thank you so much for your videos
You are a saviour !🙌
Thanks for your time to make this video great do you have video about lens and reflection, deflaction lights
Great as always ❤️
Hey professor, I don't understand what LGB is...(lateral geniculate body).. would u upload a detailed video on it?
Thank you sir so much...Sir please make one explainatory video on structure of lens..Thanksss
beautiful video
Amazing once again. Thank you!