Cranial Nerves - Functions and Disorders

[@silk.spectre6606]

Hey, Armando. This is a great video, but I caught some stuff that might confuse students. Oculomotor nerve is not just responsible for lens adjustment and pupillary sphincter constriction, but it also controls the 4 out of 6 extrinsic eye muscles, particularly the superior, inferior and medial rectus, as well as inferior oblique. Trochlear controls only the superior oblique.

[@lkhalfon]

He detailed this in another video

[@coletteellis2057]

Very well done! I appreciated your drawing while instructing, this was/is/will be very helpful!

[@plt1969]

Who needs to go to school when you have Armando to teach a full semester in 10 minutes!!!! Your videos are so clearly understood and your drawing skills are the icing on the cake, thank you for everything you do.

[@bambaragamagehemapala3316]

Explained so much clearly and precisely, so much so that, I felt like as if I am in a trance.Thank you very much.It was a revision lesson for me.

[@williammanyani976]

Well done. you make my learning easier .continue

[@gopalarao2454]

Very good lecture with a lot of information. Thanks.

[@janinehazzard6294]

..... beyond excellent!!!!! you should teach all A&P classes in the world

[@rayjrsheen]

Thank you for this video. I am taking neuroanatomy this term and this video is helpful to me. Quick question, I am learning that CN VIII Vestibulocochlear is a sensory nerve from my class and not a [sensory + motor] nerve. The popular "Some Say..." mnemonic also says CN VIII is a sensory nerve. This video says that CN VIII is both sensory and motor. Can you clarify please? Thank you.

[@czarinagalvez6580]

Thank you Armando. You really are helping a lot of people, specially students who does neuroscience on their course.

[@armandohasudungan]

Hey thanks, what do you suggest?

[@Mohamedxamza]

Hello is it possible if you could upload your notes on the video, I know it would take you time. But think about the amount of reward you could get from God rewarding you for every single time someone benefits. If I had the money, I would try to support you

[@kairiecken7805]

Regarding the motor portion of CN VIII - The olivocochlear system is a component of the auditory system involved with the descending control of the cochlea. Its nerve fibres, the olivocochlear bundle, form part of the vestibulocochlear nerve and project from the superior olivary complex in the pons to the cochlea. These efferent fibres are concerned with the active preprocessing of sound and acoustic protection.

[@vicachcoup]

*CORRECTIONS* 5:30 particularly in the forehead? Correction: Trigeminal neuralgia: this usually affects the face or jaw and is not as common in the forehead. 5:44 'Neuralgia which is a cell'. Correction:This is wrong. Neuralgia means pain due to disease of a nerve. 7:36 versicular voster virus? Correction: I think he means Herpes Zoster virus 8:05 'it is a sensory and a motor nerve' Correction: I don't think it has any motor functions 8:35 Correction: Tinnitus is not a spinning sensation - vertigo is the illusion of movement [head spinning sensation as if you just came off a playground roundabout] Tinnitus is a noise in the ear such as ringing in the ears 9:37 Injury can cause pain??? Correction: Glossopharyngeal nerve injury: lesions produce difficulty swallowing; impairment of taste over the posterior one-third of the tongue and palate; impaired sensation over the posterior one-third of the tongue, palate, and pharynx; an absent gag reflex; and dysfunction of the parotid gland. 10:23 Vagus Vagus nerve lesions produce palatal and pharyngeal paralysis; laryngeal paralysis; and abnormalities of esophageal motility, gastric acid secretion, gallbladder emptying, and heart rate; and other autonomic dysfunction. 11:40 sternocleidomastoid

[@r0drigues85]

What a constructive feedback!

[@arooshi1791]

hey! don't be mean! he already said the info may not be complete or if there are any corrections to jot them in the comments...youre here for the videos too so don't make such strong comments against someone who is helping on youtube for free.

[@arooshi1791]

roven 08 that comment was for roven 08

[@AlohaUlises]

Why are you so rude? :s Damn!!! This guy has helped me a lot, I got a lot of A's because him, besides in this video he was on his earlies

[@StratosFear1992]

roven 08 Vicachcoup actually provided very useful constructive feedback. You just criticise without going through the effort of making videos of your own.

[@mudassirkhan6447]

Yes absolutely amazing very informative this was my first lecture to watch on youtube I never watched like this before

[@drsamialrumaih]

1-Marvellous 2-Great 3-Magnificent Thanks

[@Burakgrp]

Armando i thinkthis videos are your forst ones they need to be update. you may consider to make new neuroanatomy set or atleast the diffirent ones

[@kaydee3492]

Vestibulocochlear nerve (VIII) is sensory only!

[@matijafenrich5309]

Vestibulocochlear nerve has no motoric fibers at all. Thus, it is not a motor nerve.

[@g.annasmith9834]

Doctor Armanda thank you very much for the brilliant tutorial !

[@suedebslavene6501]

Armando, thank you so much for your videos!! Love your drawings, too. You are REALLY talented : ) This one was really helpful in referencing the individual cranial nerves along with some of their associated dysfunctions.

[@m_m786]

Thanks 👍💝

[@evelynmandal1000]

Thank you for the video and explanation of the disorders!

[@elainelundy2902]

Pronounced Sterno-clido-mastoid muscle! Love your lectures! Sorry I discovered them late, but still very useful.

[@murraywebb8070]

Instant fan. I am not savvy enough to catch the inaccuracies others have mentioned, but pls peoples, explain the errors you feel exist.

[@amywillis3138]

Could you make these videos finish with a shot of the whole image as a summary? Or provide a link to a picture of the whole image? I would find these really useful to revise the whole video from.

[@sashawhitehead7378]

I love the way you teach and draw so well also! Very talented

[@shawnbuffington]

Love the videos. Thanks. TINNITUS is a ringing or buzzing in the ears, not a spinning head sensation.

[@apatik279]

Though tinnitus can be accompanied by dizziness depending on where the vestibularcochlear nerve is affected.

[@nigelutton3178]

Love the explanations. The muscle you're having difficulty pronouncing is sterno cleido mastoid you seem to be adding an n into the middle. Very small point. 99.9% very satisfied customer!

[@nigelutton3178]

thanks Armando - love your graphics. Makes it a pleasure to watch and learn.

[@JayeJo35]

This is so awesome I wish I found this before! Great job!

[@AKM99733]

excellent video and I believe you reserved the caveat at the beginning that there may be some information that could be added. If people do not like the video then A) go to medical school and then create your own or B) take a shot at it yourself by making a new video. Appreciate your time for some of the effects of cranial nerve damage.

[@juliehall9669]

Wish I could have you as my DR! I have Optic Neuritis and no doctor can figure out loss of eye sight and double vision for past two years. Muscle weakness. Just so hard to function with all my problems. My neurologist now referring me to University of Florida but I have little hope. Bad headaches for two years now no relief. No help. No offense but doctors care about money more then helping someone. None of my doctors have spoke to each other and really took time to review and solve my case

[@Sam_1964]

Could be Temporal Arteritis? Parkisonian plus syndrome? Multiple sclerosis? Check with Neurologist

[@Farhad211]

Jazakallah Khair ❤

[@MelissaFlaquer]

just one thing. I don't know if it was a typo but you write M (for motor) on the acustic nerve but actually is an exclusively sensory nerve on both it's components. The muscles in the middle ear are inervated by trigeminal and facial nerve.

[@jacksonshadrack3719]

I really enjoy your video they teach me and are easy to understand

[@TheMabes69]

Dude...you ROCK!!!

[@kylehallas2011]

the vagus nerve doesn't control taste to a level to which means it should be included in this video; the anterior 2/3 of the tongue's taste is supplied by the facial nerve whereas the posterior 1/3 is mainly supplied by the glossopharyngeal nerve with a little vagus but you make it seem like it's all vagus. Don't mean to be picky, I enjoyed the rest of the video though, just like I do with all your other videos

[@con1508]

the anterior 2/3 of the tongue's taste is supplied by the facial nerve and sensory by nerve v

[@miswakdental]

Great job! Thanks

[@jumikim523]

Wow... Thank you for this all info you are amazing!!!!!

[@okechukwuumeokeke8828]

Thank you very much I really enjoyed the lecture.

[@nnennaogechi3928]

Good job my guy. You lived it all

[@IreneLinDoctor]

brilliant way to describe the lecture!

[@seeamerica1]

Good video! I watched it all the way through!

[@kerilyndillman9778]

I noticed that error as well, but great presentation.

[@geurimra7369]

Great video, thank you! Is there any way of getting a screenshot of the whole page please? So I could print it off and learn it, thanks a lot :)

[@onebaddayaway]

Geurim Ra This is a really good screen grab program download.cnet.com/ScreenHunter-Free/3000-20432_4-10063246.html. You can snapshot each image and put your own sheet together.

[@lydiabasimbe2617]

Thank you sir

[@sameeramemon7870]

excellent lecture...thanks a lot.

[@mdorleijn]

This is amazing man! Real big talent!

[@sarahbannwart8750]

Thank you

[@robynrinehart4105]

Very clear, and great drawings. Now I know which ones of mine don't work well, and a cure would be nice!

[@blair4661]

have you found anything to help?

[@robynrinehart4105]

No, it’s much, much worse now. Having trouble focusing.

[@cinmac3]

i believe focussing can get harder as we age, because we need to slow our busy minds to look more to learning to control our thoughts, movements, reactions......

[@mazellton]

Thanks Armando - simple and clear as always!

[@catlue7006]

Thank you so much for this video 🙏🏻 it explains a lot!!

[@siphonemd751]

good teacher

[@mypupismup]

The drawings really help!

[@urdoctorstube]

Your videos are excellent

[@malfaro1392]

Awesome video thank you for posting

[@vamseekrishna3887]

Awesome video sir thank u so much Please example more deeply explain for effective for eyes

[@icu911woman]

Awesome review!!! Thank you so much for posting this!

[@thanasegaran1]

great video but students who is going to sit fr neurology exam..its not enough..but this video is a great start (y)

[@andreasarchi6958]

With regard to cranial nerve VII, it causes PERIPHERAL facial weakness (Bell's palsy, entire half of face). Central facial weakness would be from damage to an UMN (i.e. stroke, forehead-sparing). Otherwise great video!

[@vicachcoup]

*CAUTION: This video has many inaccuracies/ommissions.* Very well done but beware the details.

[@anu.3226]

Can u plz mention which are those..

[@vicachcoup]

Anu oops it was a long time ago and I can't remember :O Just cross check the info with a text book. It is a brilliant way to learn though.

[@anu.3226]

+vicachcoup ok.. Sure I will go through the text book... thank you so much..

[@vicachcoup]

Anu I have watched it again and have listed the corrections. I will paste them below this.

[@vicachcoup]

*CORRECTIONS* 5:30 particularly in the forehead? Correction: Trigeminal neuralgia: this usually affects the face or jaw and is not as common in the forehead 5:44 'Neuralgia which is a cell'. Correction:This is wrong. Neuralgia means pain due to disease of a nerve. 7:36 versicular voster virus? Correction: I think he means Herpes Zoster virus 8:05 'it is a sensory and a motor nerve' Correction: I don't think it has any motor functions 8:35 Correction: Tinnitus is not a spinning sensation - vertigo is the illusion of movement [head spinning sensation as if you just came off a playground roundabout] Tinnitus is a noise in the ear such as ringing in the ears 9:37 Injury can cause pain??? Correction: Glossopharyngeal nerve injury: lesions produce difficulty swallowing; impairment of taste over the posterior one-third of the tongue and palate; impaired sensation over the posterior one-third of the tongue, palate, and pharynx; an absent gag reflex; and dysfunction of the parotid gland. 10:23 Vagus Vagus nerve lesions produce palatal and pharyngeal paralysis; laryngeal paralysis; and abnormalities of esophageal motility, gastric acid secretion, gallbladder emptying, and heart rate; and other autonomic dysfunction. 11:40 sternocleidomastoid

[@ArthurDaynex]

Also ( Optic nerve can be damaged as a result of Multiple sclerosis ) Tahnk U .. Armando .. are U sill a student ?

[@Mitrapm24]

its amazing thank you

[@abhi2201]

Hi armando could you please post a simplified drawing of the course of facial nerve. it's difficult to understand. Thank you, Dr. Abhinav Rastogi

[@teutasalihu5327]

Correction on cranial nerve VIII, It only has sensory function, it does not have any somatic motor function. Both hearing (cochlear branch) and equilibrium (vestibular branch) or sensory functions.

[@afghanboy8]

Hi, first I really find your videos very helpful, so thank you for the effort!! Can you please tell me where I can find the pdf file of this video, because I can's find it in your facebook page?

[@danphamminh277]

Thank you very much for useful video

[@arianabdulkhaliq4703]

Hello, do you have also separate videos about the cranial nerves?

[@reddykaaliareddy6541]

Please describe about spinal nerves origin and function

[@carolefleming7341]

Thank you Armando You are amaaaaaaaazing. This was such a great review.

[@foxylady19883]

thank you sooo much ... your extremely helpful

[@mehulpatel91]

CN 8 is purely sensory.

[@barbarabrandt1549]

Multiple sclerosis and cranial nerves

[@alpacino2859]

its both sensory and motor

[@yafaalsulaimi8392]

What are the symptoms of vagus nerve damage.. please l want more informations from the books

[@mandyzanatta]

I was told i had pressure damage done to my vagus nerve during a cesarean. The doctor told me the pressure placed on this nerve caused the extreme pain in my upper back and every time i breathed in it hurt so badly! The pain was worse than anything and subsided after a few days. The nurse denied it was real pain and told me i must have a mental disorder. Good times. Im enjoying studying this subject now as she told me the Vagus nerve did not even exist...

[@drakashyadav3097]

Very nice video sir...

[@adeluku1]

i love the video and where can i get the full video of the presentation?

[@Annisaanzar]

your videos are so helpful! it is so interesting with all the colors and great draw . i wish i have seen all of your videos before my exams :(

[@fsamet]

GREAT JOB THANK YOU

[@Tiffanysings]

very informative !! thanks for making this !

[@aghffg]

You are awesome sir

[@haridymomo]

Thank you so much!

[@genius7791]

very helpful and informative video

[@drkalim5455]

informative

[@MsLileet]

Great videos, Armando! I'm so glad I've found them! Great work! =D And yes, you've misspelled "sternocleidomastoid muscle". I don't mind, though.

[@jyotirmayeerana9147]

Thanks sir....for this video

[@dinglee9870]

How did you draw these... Outstanding explanation

[@otto3967]

Thank You!

[@jaybee1196]

Tinnitus is not spinning head sensation, that's vertigo.

[@kavitachouhan4538]

I need one more video the limbus histology and changes to occur at this area

[@shingch9071]

thank you!!:D Your video helps me a lot!!

[@navegar-reparar]

Thanks so much finally I understand this topics. I wish I can washed before !!

[@charhughes7068]

Really informative, thanks

[@charhughes7068]

although VIII is only sensory

[@morarulz]

Hey nice videos! Keep up the good work! You should add more tags to your videos!

[@mdorleijn]

Hee, can I ask a question? How is the Vagal nerve associated with taste? I thought is was just the chorda tympani (facial nerve) and the n. glossopharyngeus that do taste sensoring.

[@dr.faizalam9514]

Hi! At epiglottis or you can say at posterior most part of posterior 1/3rd of tongue the taste sensation is carried out by Vagus nerve and at posterior 1/3rd of tongue taste sensation is carried out by IXth nerve that is glossopharyngeal nerve and from the anterior 2/3rd of tongue taste sensation is carried by fibers of Nucleus of tractus solitarius of Facial nerve. I hope you got your answer :)

[@aleksejkopcic1408]

@@dr.faizalam9514 you nailed it bro

[@nitibaker8253]

You are the best!

[@daifulao564]

nice vedio

[@goldeesingh6993]

tq so much sir

[@bswgd8]

CN XI supplies motor innervation to sternocleidomastoid and trapezius only. The pharyngeal and laryngeal are mostly X or ansa cervicalis.

[@bomhayhay]

شكرا .............thanks

[@marianamedina8838]

you should do a video of vagus nerve which is complicated THANKS!!!!

[@kunjiparu7814]

Thank youu

[@emanuelepini8944]

you are amazing!