Medulla Oblongata Anatomy - External & Internal (White & Grey matter) + QUIZ
Вставка
- Опубліковано 12 чер 2024
- Content:
Introduction: 0:00
Topography of the Medulla: 01:03
Anterior Surface of the Medulla: 01:52
Posterior Surface of the Medulla: 04:19
Internal Surface of Medulla: 05:47
Grey Matter of Medulla 07:08
White Matter of Medulla (Ascending Tracts): 07:51
White Matter of Medulla (Descending Tracts): 11:58
QUIZ! 16:11
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Topography of the Medulla Oblongata:
- Lies above the Spinal Cord, Below Pons, In front of the Cerebellum, on clivus, above foramen magnum
- 2,5 cm length
- Anterior Surface
- Posterior Surface
Anterior Surface of the Medulla Oblongata:
- Anterior Median Fissure (Fissura Mediana Anterior)
- Right Anterolateral Sulcus (Sulcus Anterolateralis Dexter)
- Left Anterolateral Sulcus (Sulcus Anterolateralis Sinister)
- Right Posterolateral Sulcus (Sulcus Posterolateralis Dexter)
- Left Posterolateral Sulcus (Sulcus Posterolateralis Sinister)
- Pyramids of the Medulla Oblongata (Pyramis Medullae Oblongatae)
○ Contain deccusation of pyramid (Decussation Pyramidum)
- Olives of the Medulla (Oliva)
- Cranial Nerve XII (Hypoglossal Nerve) from anterolateral sulci
- Cranial Nerve IX (Glossopharygeus)
- Cranial Nerve X (Vagus)
- Cranial Nerve XI (Accessorius)
Posterior View of Medulla Oblongata:
- Posterior Median Sulcus (Sulcus Medianus Posterior)
- Gracile Fascicle (Fasciculus Gracilis)
○ Gracile Tuberce (Tuberculum Gracilis)
- Cuneate Fascicle (Fasciculus Cuneatus)
○ Cuneate Tubercle (Tuberculum Cuneatus)
- Inferior Cerebellar Peduncle (Pedunculus Cerebellaris Inferior)
Gray Matter of Medulla
- Gracile Nucleus (Nucleus Gracilis)
- Cuneate Nucleus (Nucleus Cuneatus)
- Reticular Formation (Formatio Reticularis)
- Olivary Nuclei (Nuclei Olivares)
- Nuclei of the Rhomboid Fossa (Cranial nuclei of X-XII)
Ascending tracts of Medulla:
- Gracile Fascicle (Fasciculus Gracilis) to Gracile Nucleus
○ Epicritic Sensibility (Proprioception and Mechanoreceptios)
- Cuneate Fascicle (Fasciculus Cuneatus) to Cuneate Nucleus
- External Arcuate Fibers (Fibrae Arcuatae Externae)
- Internal Arcuate Fibers (Fibrae Arcuatae Internae)
○ Decussation of the Lemnisci (Deccusatio Lemnisci Medialis)
○ Medial Lemniscus (Lemniscus Medialis)
- Anterior Spinocerebellar Tract (Tractus Spinocerebellaris Anterior)
○ Throguh inferior cerebellar peduncle
- Posterior Spinocerebellar Tract (Tractus Spinocerebellaris Posterior)
○ Through Superior Cerebellar Peduncle
- Anterior Spinothalamic Tract (Tractus Spinothalamicus Anterior)
- Lateral Spinothalamic Tract (Tractus Spinothalamicus Lateralis)
Descending tracts of the Medulla:
- Corticospinal Tract (Tractus Corticospinalis)
- Decussation of Pyramids (Decussatio Pyramidum)
- Lateral Corticospinal Tract
- Anterior Corticospinal Tract
- Corticonuclear Tract (Corticobulbar tract)
- Vestibulospinal Tract (Tractus Vestibulospinalis)
- Olivospinal Tract (Tractus Olivispinalis)
- Olicocerebellar Tract (Tractus Olivocerebellaris)
- Rubrospinal Tract (Tractus Rubrospinalis)
- Tectospinal Tract (Tractus Tectospinalis)
- Lateral Reticulospinal Tract (Tractus Reticulospinalis Lateralis)
- Medial Reticulospinal Tract (Tractus Reticulospinalis Medialis)
- Medial Longitudinal Fasciculus (Fasciculus Longitudinalis Medialis)
QUIZ
Sources used in this video:
- Memorix Anatomy 2nd Edition by Hudák Radovan (Author), Kachlík David (Author), Volný Ondřej (Author)
- Biorender
- University notes and lectures
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PS! There's a little mistake in the table at the end (grey matter). Number 2 and 3 are switched. Apologize for the minor mistake!
There is a mistake only in 2 and 3 right ??
Rest of the table is correct right??
Not a problem 😘😘 it really helped a lot
Never Mind Mistakes WOW WOW What A Lot Of Hard Work And Time You Put Into These Beautiful Animated Videos You A A Genius A Super Star And A Super Wonderful Teacher Thank You So Much For Sharing Your Beautiful Wonderful Knowledge And Time And Patience And Teaching and Lots Of Hard Work Put Into These Beautiful Videos @ Taim Talks Med 👍👍❤️❤️
Very helpful thanks...what gaoodns when someone has a mass in the medulla?
This is amazing, honestly every other anatomy source was melting my brain and I understood everything here, explained simply yet detailed. Defo subbed!
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(From Uzbekistan 🇺🇿)
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The best video I found to get a good idea of the medulla as well as a brief understanding of the conductive system
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This video is very detailed , well explained and simple. It has really helped me in my studies. Thank you and keep up the good work .
Glad to hear! All the best with your studies :)
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الله يزيد علمك ويبارك فيه🤲🏻🤍.
Amazing 🤩 thank you very much
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Thank you very much for the clarification, I find it extremely useful, such explanations are never enough. Thank you very much and I hope to deliver many others
Thank you! Appreciate the kind words
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Knowledge should be free, In my opinion! Glad I could help you through these videos 😊
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Great videos, I love how you breakdown connections between structures. Please keep making more
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Nice video i had ever seen on medulla just in 16 minutes..thnku so much sir..😊
TQ very much for valuable information
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بارك الله لك في علمك اخي ❤️
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You're welcome! Glad it helped
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omg I m just so happy that I was able to find these videos but sad too as I already wasted my time with Kaplan ( made me so sleepy )…this was so quick n detailed and discussing the tracts at the same time ,keeping neurology interesting and didn't made me tired or procrastinate, cant thank u enough …😄😃 well almost forgot to mention the details u have written with your videos n also mentioning the time n topic saved a lot of time if i wanna jump to certain section of the video
Nice!💪🏽Glad to hear! 🙂 All the best with your studies
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You're welcome! Glad you found it helpful =)
Thank you
First off, thanks so much for your videos, they are all really informative and so well made! However I have one question here: At about 13:40, you talk about the olivocerebellar tract and how it comes form the olivary nuclei and then goes on into the cerebellum. Wouldn't this be a sensory/ascending pathway and thus blue? Hoping you will see this and answer me because it confuses me a little! Thank so much!😃
Totally understand your confusion!
Keep in mind that the olivocerebellar pathway initially relays information from the cerebral cortex that projects to the olivary nuclei and then to the cerebellum. So if you make a ''mindmap'' of this pathway, you'll see that it is in fact descending.
You can blame me for not elaborating on this one =)
@@TaimTalksMed Ah I see that makes sense!! Thanks so much for your very quick answer and explanation! Got it 😃
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Thank u
are pyramidal & medial lemininsci occur at vertical or transverse plane?
in another way : do the two decussations actually appear in a transverse section ?
Deccusations in general can be seen in both planes. You'd rather visualize these tracks using visual imaging like track density imaging and tractographies though (as it's hard to localize tracts in the white matter on a cadaver). I only show relative schemes though, really only to help with the visual learning. Hope you found the video helpful nevertheless 😊
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Please upload pons,midbrain and reticular formation have my last attempt on the 17th September 😭
Hey man! Glad you're finding the videos helpful! Pons is up on Sunday, 4th ventricle and rhomboid fossa on the 15.09. I'm sure you'll do great in the test, just keep your head cold and focused 💪
hey at the end at min 16:19 u switched the names of cuneate nucleus and gracile nucleus ? and u mentioned in the video when u were explaining them other way around
Thank you for pointing that out! I've pinned a little note in the comment section :)
Beautiful explanation!
تحفة تحفة تحفة شرحك بكددد جامممد جدااا
متشكرة حضرتك 😭❤️
Actually Your explanation is so great, you saved me.
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All the best with your studies!
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Thank you for a very good explanation of the structure and function of the medulla. I have several autoimmune diseases and had inflammation in this portion of the brain as a consequence. It is helpful in explaining some of my symptoms, wish there were better methods for helping these symptoms!
Sorry to hear about your condition, and I truly hope they find better treatment options in the future as well! I'm glad I could contribute to your learning =)
Sooooooo gooodddddd
What happens if medulla oblongata is constricted?
Why decussation occurs?
What's its significance?
Please tell the answer!
i suppose this is the lower medulla... as we are able to see the nucleus cuneatus and gracillis ..am i right ?
وما تشائون الا ان يشاء الله رب العالمين
good dedication . keep it up. u r bit fast. try to tune for best speed..
wonderful explanation. only if it shows first when searching :l
Glad it helped! Yeah the UA-cam algorithm's not my friend unfo😅 The more people reacts with the video, the higher it gets in the search results though; so I'm staying positive! 💪
2 is nucleus gracilis and 3 is nucleus cuneatus
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Can I translate it into Uzbek and post it on the channel?
Absolutely! As long as you refer it back to the original video :)
guys i dont understand the kind of fibres that goes to the gracilis nucleus,i understand that there coming from the lower part of the body but what is propreception what kind of fibres are they ???
They mainly come from muscle tendons and joints; so they help your brain understand the position of your joints and the stretch of the muscles :)
@@TaimTalksMed thanks a lot brother
Can i get these notes
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Where can I find this brain model?
I use the program Complete Anatomy :)
Here after Waterboy 😂
Blessings in an abundance of the faith. I salute you. 😘🙏Grace and peace be unto you and to this place. Thank you. God bless you. 😊Will you believe and receive Jesus Christ as your LORD and personal saviour??? I do. 🌈🙏💕
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I can't understand
Blessings in an abundance of the faith. I salute you. 😘🙏Grace and peace be unto you and to this place. God bless you. 🤍🌈🤍Thank you. 💌Will you believe and receive Jesus Christ as your LORD and personal saviour??? I do. 😊
Ghj
Ttt
Looks like mama’s wrong again!