Trigeminal System | Neuroanatomy

Trigeminal System | Neuroanatomy
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▬▬▬▬▬▬▬▬▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
TRIGEMINAL SYSTEM:
Trigeminal Ganglion is primarily a sensory ganglion & has 3 sensory divisions;
1-Ophthalmic Division [V1]to the eye; enters orbital cavity through Superior Orbital Fissure (SOF)
2-Maxillary Division; [V2] enters Cranial Cavity through Foramen Rotundum
3-Mandibular Division; [V3] enters through Foramen Ovalle
Sensory Root of Trigeminal Ganglion enters into CNS, at Mid Pontine area & Motor Root leaves through Foramen Ovalle.
V1: Upper part of face; lateral part of nose, forehead, upper part of head
V2: Supplies cheek, upper lip, lower part of eye
V3; Chin, lower face
TRIGEMINAL NUCLEI in brain are:
1-Mesencephalic Trigeminal nucleus in midbrain
2-Principal Pontine Sensory Trigeminal nucleus
3-Spinal nucleus of Trigeminal system
Sensory fibers from the Trigeminal System enter into these nuclei; and fibers from all 3 Trigeminal nuclei merge together as Trigeminal Lemniscus and end up into Ventral-posteromedial (VPM) nucleus of Thalamus.
MOTOR SUPPLY by TG System:
Muscles of Mastication, Tensor Tympani, Tensor Vali Palatini, Mylohyoid & Anterior Belly of Digastric
Trigeminal Sensory root: some part (outside CNS obviously) is covered by Oligodendrocytes (instead of Schwann cells)
Clinical Co-relate; Diseases affecting CNS myelination will also affect this part of Trigeminal Sensory Root; Multiple Sclerosis; T-cell mediated damage to Oligodendrocytes.
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    Dr. Najeeb, Thank you so much for your excellent videos! I’ve learned so much about my Trigeminal Neuralgia. In 2012 I had a microvascular decompression with a good outcome. However, my pain is completely out of control once again. Understanding this anatomy actually helps me handle the pain. I’ve watched dozens of your videos. God Bless you for the education you provide. 🙏🏼 Best Regards, Victoria

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    You’re welcome 😊

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    A great teacher...

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    Thank you💝

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  • @DoctorNajeeb

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    You are welcome❤️

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    Thank.you.so.much.sir.

  • @neiamulkarim934
    @neiamulkarim9342 жыл бұрын

    Excellent❤️❤️ please upload more and more lecture

  • @DoctorNajeeb

    @DoctorNajeeb

    2 жыл бұрын

    New lectures are being recorded these days and will be uploaded soon.

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    @DoctorNajeeb

    2 жыл бұрын

    Thank you so much for your appreciation! Stay tuned ❤️

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    My hack for 1st year in college so far

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    Best sir

  • @DoctorNajeeb

    @DoctorNajeeb

    2 жыл бұрын

    Thank you❤️ Keep supporting❤️

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    human atlas !

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    @chandooryamary1034 Жыл бұрын

    Legend 🍫🍫🍫🍨🍧🍦

  • @DoctorNajeeb

    @DoctorNajeeb

    Жыл бұрын

    Thank you❤️

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    🙏🙏🙏🙏

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  • @DoctorNajeeb

    @DoctorNajeeb

    2 жыл бұрын

    Thank you❤️

  • @badarrazzaq6785
    @badarrazzaq67852 жыл бұрын

    Sir mandiblular nerve ki bhi video upload Karen papers pass hn agar kxh din tk upload kar den tou l will be thankful

  • @DoctorNajeeb

    @DoctorNajeeb

    2 жыл бұрын

    You're suggestions are highly appreciated. Stay tuned ❤️

  • @badarrazzaq6785

    @badarrazzaq6785

    2 жыл бұрын

    Insha'Allah and thanks sir

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    ❤️

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    @SoumiSenguptaBDS6 жыл бұрын

    Good lecture!..."division"...not divian!

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    @deadmanrisesyt18337 жыл бұрын

    thank u sir... i m first year bds student . and following yr lecture. thank u so much sir.