Neurology | Olfactory Nerve: Cranial Nerve I 

Zach, you have such a gift. I've been slaving at my book all day and I don't know why I never start the ninja nerd review sooner! I've gone from wanting to throw my book to ENJOYING this video. Never stop teaching!

Great lecturer! I totally agree with this guy is the best medical lecturer than lots of professors in universities. Thank you for providing this concrete and vivid explanations!

I’ m a 73 years old neurosurgeon and highly enjoy your videos. Just amazing your didático. Keep up!!!

Omg thank you I’m in AP 2 right now and it’s completely online and there is no lecture to explain and I’m a visual learner this is gold ! For helping me understand the concept

“I farted, I ripped one, I cut the cheese” 😂😂😂😂

I have to express how greatful i truly am for this video! I am currently taking A&P and my professor is not doing any lecture videos which makes it almost impossible to understand. But this has truly helped me A TON. THANK YOU THANK YOU THANK YOU!

Man I don’t know how to tell you this but you’re literally a saviour; you’re so amazing, I actually teared up watching one of your videos the other day because of how good it was. Thank you so much for all your hard efforts 🥺❤️

Before getting my ADHD treated, these videos frustrated me. Now I understand that this guy is one of (if not) the best RU-vid medical science instructor in terms of comprehensiveness and big-picture tie in. Would love to donate once I am an attending lol

Beautifully organized and detailed! What a great great teacher you are. All your videos are so very beyond helpful. Thank you so much

teacher in a billion, zach. you are an inspiration to the profession. just wow :)

Ninja Nerd Saves me, again. Helping medical students everywhere!

Had Covid three months ago and just beginning to get some sense of smell back. Talked to a close friend and she just told me she had just one seizure for some unknown reason years ago and lost her sense of smell for good. i looked up olfactory and there you are explaining how all this works. You did a great job in explaining how all this works. Sometimes we have to continue searching for more answers but you are like one stop shopping. I'm looking forward to watching ore your videos. I had tonic clonic seizures most of my life so looking forward to watching the video on seizures. Cause was idiopathic. I do believe that without knowing it years ago cannabis was helpful in controlling them.

you are gold.... youve helped me pass so many exams/courses.. THANKYOU for being sooooo full of knowledge and fun to watch..by keeping it interesting and neat

I am truly thankful for your amazing videos. You made me get 100% on all my a&p exams!

Omg, this is the first video of you that I watched and I really have to say that you are an A-M-A-Z-I-N-G teacher!! Even if it is a very detailed video of almost 40 minutes, I didn't lose my interest at all. I'm surely gonna watch your other videos and finaly learn some in-depth medicine! I feel so motivated and inspired now, whoo! (Liked and subscribed of course)

Thank you for the great content!!! You literally save my life From a physiotherapy student in Hong Kong

Easy to understand neuroanatomy finally ....Thankyou soooo much

i love this video and how you explain the pathway @8:36 I think the glands are serous an not mucus glands. Serous fluid facilitates diffusion of the odorant to the receptors on the cilla!

The humor makes this so much more easier to digest. It eases the mind kinda 🙂

Sir ur teaching blew my olfactory bulb......lota of love from india🖤🔥

@ninja nerds you basically became my personal tutor.. Thank you so much 🙏 🙏 🙏

Hi, maybe I didn't understand well u said the CSF licking name Rinohrrea, but in a common cold there is Rinohrrea because there is mucus overproduction, or you just mean after a trauma.... ? BTW everything else so clear 👌 I really like it!

With all due respect, I love you sir

Thank you Zach, when you said you farted. It made me laugh a lot, took my stress away :)

How come this genius, very much useful guy have got only 10 k likes out of almost million watchers??? People are so ungrateful👀

This is the best lecture that I was looking for...great

since i started watching your videos i could understand things easily....thank you so much

Best channel to study medical science.❤️

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You're my best anat teacher!!!

Amazing video!! Thanks SO much-your teaching style is so clear! Also, I had to play 3:08 again for my husband; we both had a laugh! :-)

Thanks for informative video.

Thank You! Awesome Lecture

You're brilliant !!!!! Thank you so much helping me understand whole neuroanatomy

the best teacher of the world !!!

Best of the best person ❤️ Thanks to your video lectures my knowledge in medicine became much better 💪 I wish you happiness🌷

How does he keep a straight face when talking about the fart lmao

Sooo amazing!! Thank youuuu for such nice explanation

wow you are a pure genius. I appreciate all your hard work!

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Excellent job! But it's cribriform not cribiform plate. Thank you again.

I really enjoyed this video. You are awesome lecturer

YOUR SO SMART

Really interested in a follow up video and/or reply about how COVID has been a factor in eliminating taste and smell for so many...and how some get these senses back. (People who lost their sense of smell report dry noses post COVID. So would love to hear more about the related mechanisms on that front as it relates to this video. )

amazing..... it is gonna save me from being crazy in med school..

MAGNIFICENT!! easy to follow and very clear concepts , Thank you so very much :)

You are the best teacher on the world😍

It was really awe Ninja

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Sir, you are doing really a great job... "free teaching" Lots of best wishes for you😊

This man has great concepts

Wonderful teacher and wonderful lectures😍

Awesome tutorial... have gained the content

Awesome video.... Really helped alot❤

Thank you!

Thanks a lot sir, to make concept more clear...♥️

Thank you ❤❤❤

Thank you

Awesome video man!!!!!!

Please tell me the specific olfactory receptors. Reason to anosmia could also be a defective cilia! As in Bardet Biedl Syndrome

Methane is actually odorless 😁.

Thanks

Great explanation Thank you very much

Excellent,Zac!!!

Great

Hello dear we need more details of pathology I am pretty sure I will pay uh excellent teacher nnlots of love ❤❤

You have my heart zuch🥺🥺

Thanks❤

Very good explanation 🙂🙏

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you forgot to mention the anterior commissure which transmit the contralateral fibers from the other olfactory bulb

Super lectures

You’re absolutely amazing! Thank you:)

Great as always ❤️

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Love you soo much sir

superb

Amazing

Awesome! Greetings from Ecuador

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Best teacher ever !! this is so interesting and dynamic :D

Concept 🔥🔥🔥

Brilliant!! Thank you! Happy new year!

what video shall I look as a prerequisite to this one? (you already wrote a few things on the board...what video that comes from?) thanks.

Thank you for the video. Very helpful.

thanks dude!

Thank you , that was very helpful 🌹

THANK UUU

Bro can you upload video for. Propagation of action potential starting from the odour receptors

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Nice

Woow!!! Too good

Just wanna Thank you

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Great video! I have some questions about the Receptors and the Odorants, maybe someone can help. 1) In the video it's labeled Receptor and Odorant 1,2,3,4. I'll call them Receptor A, B,C,D and Odorant a,b,c,d here. Naturally Odorant "a" can bind to Receptor "A". However e.g. Odorant "c" can also bind to Receptor "A". Is there a difference if "a" or "c" binds to "A"? Is it less likely that "c" will bind to "A" and/or will the effect of Odorant "a" to Receptor Neuron "A" be bigger than that of Odorant "c" to Receptor Neuron "A"? 2) Around 20 Axons of (20 bipolar) Receptor Neurons are packed together and pass the Cribriform Plate to connect to the Olfactory Bulb. Their signals are still seperate though - functionally it makes no difference if they would be 1, 20 or 100 packed together - is that correct? 3) In the Glomeruli the Axon Terminals of the Receptor Neurons are synaptically connected with the Mitral Cells. How many Olfactory Neurons are connected with one Mitral Cell? The above mentioned 20, or more? 4) "A Glomeruli has a specific odor that it responds to". Does that mean each Glomerulus is only connected to a Receptor Neuron of one Type? Like Receptor Neuron A,B,C,D there are also Glomerulus A,B,C,D? (it would also respond to Odorant "c" but maybe less so - see question 1) 5) Is there a video that exemplary shows how a mix of odors comes to be formed through the different stages? Thanks a lot!

U are fantastic god bless you