Neurology | Glossopharyngeal Nerve: Cranial Nerve IX 

+Mahdi Katz lol!! I'm so happy we were able to help!!!

@@NinjaNerdOfficial I am one of your biggest fans and your videos helped me alot , but there is a mistake in this video and the vagus nerve video. the glossopharyngeal nerve innervates the carotid body and sinus by (GVA) fibers so it transmits information about blood pressure to the medulla and here comes the vagus nerve role where it transmits those informations to the cardiac plexus by (GVE) fibers causing a change in heart rate according to the blood pressure state. ... or am I the one getting it wrong ? I will be glad if you answer my question.

@@sarahu.k7162 Siegel (book) also mentions that, but it seems he focused only on the taste function...

Respect your teachers...

My professor tells me to watch Ninja Nerd videos 😅😅

How is your daughter doing now? I hope she doesn’t have pain anymore

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+Subhash Naik wow thank you so much for your super kind words. I truly appreciate it!

Quite frankly, I think he's already better than dr. najeeb

Being an addict of NEUROLOGY, in my views he is much better than sir Najeeb. For me at least.

@@Peter-jx6qq yes najeeb is a scam artist

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Thanks for being a awesome Ninja Nerd!

+Amey Sharma Thank you so much for you kind words and I'm so glad you enjoyed it!!!

exactly, well said

+Nerd Xl thank you so much I'm so happy that we were able to help!

+Aditi Dev so happy we were able to help!

+sanskriti gupta Thank you! We are trying to!

You're welcome sir 😊 Your vedios helped me alot .. :)

Hey there. About your question on why aren´t the fibers from the carotid body and sinus considered special visceral afferent I think i can explain that to you. Those types of fibers include things like the sense of taste and the sense of smell. From what i read in my text books those are the only examples Hope I helped :)

+Dragana Trifunovic have you seen our video on gustation. Check it out!!!🤓

I think so

Definitely I agree with you. fungiform papillae through intermediate nerve and CN VII

We thank him for his service!

Have you find it?

@@haifa8475 check his patreon

@@sdjd2570 ok

@@haifa8475 found*

True, he also made a mistake with the papillae fungiformes, they are found in front of the sulcus terminalis and are connected with the facial nerve not the glossopharygeal

No taste is SVA

Taste is special sense.

+Alexander Top Marchant Great question! The glossopharyngeal nerve does exit the posterior cranial fossa through the jugular foramen. However there are certain fibers that make up the glossopharyngeal nerve. One of these fibers are called GVE fibers which are parasympathetic fibers. Once the GBE fibers move out of the posterior cranial fossa via the jugular foramen. The GVE fibers next enter into the middle ear cavity through the tympanic canaliculus then from there it moves up onto the promontory of the middle ear where interacts with some of the sympathetic fibers that branch off of the carotid plexus. From that point on these parasympathetic fibers(GVE fibers) move up into the middle cranial fossa through the hiatus of the lesser petrosal nerve then the lesser petrosal nerve(which are still GVE fibers of the glossopharyngeal nerve) moves out of the middle cranial fossa through the foramen ovale. it will progress until it reaches what's called the otic ganglion. From there postganglionic parasympathetic fibers(GVE fibers) progress until they reach the parotid gland. Where they will stimulate salivary gland secretion. Does that clarify your question?

Yes! Thank you very much! These videos are SO helpful for my neuroanatomy exam! Great work!