SO4 LR6 is the mnemonic here...SO for superior oblique which is supplied by the 4th CN and LR for lateral rectus which is supplied by the 6th CN...and the remaining muscles are supplied by the 3rd CN
superior rectus=elevates, adducts, and medially rotates the eyeball inferior rectus=depresses, adducts, and laterally rotates the eyeball medial rectus=adducts lateral rectus=abducts superior oblique=depresses, abducts, and medially rotates inferior oblique=elevates, abducts, and laterally rotates.
nice, remember ruclips.net/video/OYt2Zv6DKi4/видео.html Importantly - the action of the muscles will often depend on the direction of gaze (see also link to my video) - as the orbits are at an angle, only when you align the direction of gaze with the vector of pull of the respective muscles will you get a "clean" single motion. Your list is correct for the eyeball in the primary position :-) I love this guys videos
And it is good to remember dat , obliques cause elevation or depression in adducted position, recti cause elevation or depression in abducted position, though the primary action of oblique is abduction and of recti is abduction
Thank you for the lovely animation and nicely described. 🤩🤩 P.s. Mnemonic for extraocular muscle innervation LR6 SO4 R3 Lateral Rectus - Cranial nerve 6 Superior oblique - CN 4 Rest by CN 3
I'm just a regular guy who just thought: "Hey, how the heck does my eye move?" This video pretty much describes everything in a way I can understand. So if a regular joe can comprehend the info being told, then you're doing something right lmao. Great vid.
At 9:33 it says in abduction , superior n inferior rectus are causing elevation n depression respectively ( but I think it should b superior n inferior obliques causing depression n elevation in abducted position respectively) same it says in adduction, superior n inferior obliques causing depression n elevation (but I think it should b superior n inferior rectus that causing elevation n depression in addicted position) plz respond...
this video was really helpful.....thanku so much for this video....i was totally confused about the muscles of eyeball for long....but now this video gave me a clear idea about it...thankyou anatony zone....please upload more videos of head and neck region...
Hello, I am a bit confused. I thought the tertiary function of the oblique muscles is abduction and rectus muscles adduction. If that is correct then in ABDuction, shouldn't IO elevate and SO depress and vice versa?
I would really appreciate some advice. I’ve been getting headaches for over 20 years. After watching this video I suspect it’s due to over straining of my Superior Oblique (this is the location of the pain). Pain is always above my left eye and I believe my left eye is lower than my right eye. I therefore tend to tilt my head to the right to compensate for this. Would this situation put more strain on my Superior Oblique muscle? Thanks for any help!
The video says that superior oblique cause depression, abduction and intorsion (medial rotation) I'm confused how can it abduct n intort at the same time?? Same with inferior rectus, video says the muscle causes Depression, adduction and extorsion ( lateral rotation) So how can Adduction n extorsion happen at a time? Also in my text book superior oblique causes extortion and inferior rectus causes intorsion. Which one is correct ??
Can anyone explain the slight depression action SR has when a patient is looking nasally with the eye of interest? Does it have to do with the encyclotorsion action it has?
I am realy give thanks Millions Millions unspeakable to all the Speakers my lectures in this cellphone company.May God give you all your reward.Thank you
due to the insertion of the superior oblique muscle, posterior to the insertion of the superior rectus, it should cause lateral rotation of the eyeball not medial rotation as mentioned in the video
can you tell me why superior oblique action is depression and inferior oblique is elevation?? becz according to their poision they are located as superior and inferior part so they can be elevated or depression but there is just opposite action.
inf rectus muscle causes adduction ? or abduction ? adduction means medially , but here it shows adduction occurs via inf. rectus which illustrates eyeball moves laterally . just got confused . can you please correct my confusion ? its here on video at time of 5.33
Adduction does mean that the eye moves medially, or toward the midline, you are correct. At 5:33, it illustrates that the inferior rectus depresses (moves the eye down), and also helps with Adduction (which, like you said, means moving the eye toward the midline). It also helps laterally ROTATE which is different than moving the eye laterally. Like Zarian said, rotation in this case means the eye spinning counterclockwise on its axis, whereas movement means the eye turning medially (Adduction).
Yes, both superior and inferior recti cause adduction. Because they run medially in the the orbit ( with the the orbital axis). In addition, when we look from the anteroposterior axis, the superior rectus cause medial rotation, and the inferior rectus cause lateral rotation. Ref. Moore
I believe there is a major mistake regarding the functions of the superior/inferior rectus muscles in abducted position. Don't the superior/inferior oblique muscles cause depression/elevation in abducted position? Same with the movements in adducted position. Please correct me if I'm wrong.
I don't get it - it says the inferior oblique elevates/ABducts/extorts the eye (which sounds to me like the eye would therefore move up and out) but then it says when the eye is elevated and the eye is ADDucted (i.e. Up and in) it's the inferior oblique causing this.... please help!
SO4 LR6 is the mnemonic here...SO for superior oblique which is supplied by the 4th CN and LR for lateral rectus which is supplied by the 6th CN...and the remaining muscles are supplied by the 3rd CN
جزاك اللّٰه 😇
Every one know this 😂😂
I’m so proud of myself for actually understanding what you just said
LR6 SO4 (based on H2SO4)
All3 LR6 SO4
You just summarized and explained my 71 pages of class slides. I'm grateful. Honestly. your videos are very helpful
I believe now you are a certified anatomist of a Dr cos your comment was 5 years ago
@@KhumoKekana-e7d I am 🤭
@@KhumoKekana-e7d actually he study optometry😊❤
Amazing!@@filming_ai
superior rectus=elevates, adducts, and medially rotates the eyeball
inferior rectus=depresses, adducts, and laterally rotates the eyeball
medial rectus=adducts
lateral rectus=abducts
superior oblique=depresses, abducts, and medially rotates
inferior oblique=elevates, abducts, and laterally rotates.
And he also mentions the Lateral Palpebrae Superioris which is for elevating the upper eyelid.
nice, remember ruclips.net/video/OYt2Zv6DKi4/видео.html
Importantly - the action of the muscles will often depend on the direction of gaze (see also link to my video) - as the orbits are at an angle, only when you align the direction of gaze with the vector of pull of the respective muscles will you get a "clean" single motion. Your list is correct for the eyeball in the primary position :-) I love this guys videos
MVP right here.
And it is good to remember dat , obliques cause elevation or depression in adducted position, recti cause elevation or depression in abducted position, though the primary action of oblique is abduction and of recti is abduction
@@HarryPotter-vl3pc you saved us again
I am a huge fan of TeachMeAnatomy. It really helped in my first year at med school
thank you very much...your videos more better than books) because it's fast and easy to remember it thank u from Russia
Thank you for the lovely animation and nicely described. 🤩🤩
P.s. Mnemonic for extraocular muscle innervation
LR6 SO4 R3
Lateral Rectus - Cranial nerve 6
Superior oblique - CN 4
Rest by CN 3
bdc*
mind blowing work.... voice crystal clear bro.... waiting for entire anatomy link......
Raman Srivatsa i was going to fall a sleep... It sounds like an asmr
My god this just made it soooo much easier. Thank you so much! I'm preparing for an exam and this saved a lot of time.
💯/💯 I recommend this channel every one for anatomy
The best on RUclips really the best one
Great explanation ! I've always had trouble imagining the extraocular muscles, not anymore !!
Thankyou sir for such grt enlightenment....
I am specialising in faciomaxillary surgery .. and I have found your vedios really comprehendable
This type of demonstration compels to study Anatomy. Have a Good , healthy and Long life .
I'm just a regular guy who just thought: "Hey, how the heck does my eye move?"
This video pretty much describes everything in a way I can understand. So if a regular joe can comprehend the info being told, then you're doing something right lmao. Great vid.
Thank you for your work .. you are the best honestly and your vids saved me alot , so thank you again.
I have my osce exam today and if I pass it'll be all thanks to you never stop making these videos sir
Did you pass ?
@@danielatom5895 I did pass.
Absolute star of a video! Really helped my understand eye movement (particularly in relation to the oblique muscles) Thanks so much!
Thank you so much! Charming voice, clear explanation and great animation!
At 9:33 it says in abduction , superior n inferior rectus are causing elevation n depression respectively ( but I think it should b superior n inferior obliques causing depression n elevation in abducted position respectively) same it says in adduction, superior n inferior obliques causing depression n elevation (but I think it should b superior n inferior rectus that causing elevation n depression in addicted position) plz respond...
I have the same question.
I think that also
Al3SO4 and LR6
Al- all the remaining EOMs
SO-Superior oblique
LR-Lateral rectus
Thank you very much for clearing all my confusions about the eye movements 😄
I regret starting with my textbook you just summarised everything thank you 😂😂
Thank you. Finishing up my prerequisites for my Associates in RN. Very helpful. A lot of these videos are the reason a lot of us pass our classes.
After watching many videos and reading many resources, I think this is a brilliant video- thank you!
this video was really helpful.....thanku so much for this video....i was totally confused about the muscles of eyeball for long....but now this video gave me a clear idea about it...thankyou anatony zone....please upload more videos of head and neck region...
This is really a great job and I was really lost but you guide me through the way!
Thank you so much!
Best channel for Anatomy...👍
Crystal 🔮 Clear Explanation
Thank you Peter so much and your colleagues for this work
Thank you for the video.
Can someone please explain how does the superior oblique muscle cause depression of the eye? i cant seem to imagine it.
Hello, I am a bit confused. I thought the tertiary function of the oblique muscles is abduction and rectus muscles adduction. If that is correct then in ABDuction, shouldn't IO elevate and SO depress and vice versa?
According to the last image on the video it suggests the opposite (ABDuction: SR elevates and IR depresses etc)
@@moazzamaiqbal3759 Hey, I was just now in the same place, did you find the answer??
Please share if so…
Your accent fascinates me!😃
Very nice tutorial sab samajh mein aaaa gaya 👍👍😀😀
thank you for making this one more animated
5:09
5:37
5:56
6:21
Obliques
7:38
8:01
wow!thank you so much..I couldn't understand this in class but now it's very clear
only after this video I actually got how the eye moves!tons of thanks (Y)
Annulus of Zinn sounds like a death metal band
THANK YOUUUUUU! BEST VIDEO FOR EYE MOVEMENT
its awesome bro... you just clear my idea so simply... keep uploading videos.. we are here to view your thinking.
Muchas gracias, el único video que me sacó todas las dudas. Thanks you so much!!!
Legends at the table ❤
@ Anatomy Zone Thank You👍👍❤️❤️
it is really helpful for my learning. thank you so much!
Hiiii ,👍
Ur explanation is mind blowing
Great 3D videos. Really helps alot. 😊
I would really appreciate some advice.
I’ve been getting headaches for over 20 years. After watching this video I suspect it’s due to over straining of my Superior Oblique (this is the location of the pain). Pain is always above my left eye and I believe my left eye is lower than my right eye. I therefore tend to tilt my head to the right to compensate for this. Would this situation put more strain on my Superior Oblique muscle? Thanks for any help!
Is there any way to support the creators of this app? It literaly makes studying so much better!
Amazing is not the word!!
Thank you very much. It is best video about eye muscles. Thank you again.
Abduction : superior oblique and inferior oblique ، adduction : superior rectus and inferior rectus 9:31
well illustrated and explained thanks
Awesome !! Best video on youtube regarding Ocular muscle (y)
excellent way of explaning
The video says that superior oblique cause
depression, abduction and intorsion (medial rotation)
I'm confused how can it abduct n intort at the same time??
Same with inferior rectus, video says the muscle causes
Depression, adduction and extorsion ( lateral rotation)
So how can Adduction n extorsion happen at a time?
Also in my text book superior oblique causes extortion and inferior rectus causes intorsion.
Which one is correct ??
Your text book
Can anyone explain the slight depression action SR has when a patient is looking nasally with the eye of interest? Does it have to do with the encyclotorsion action it has?
Thankyou for this amazing video 😮
thank you very much sir. You have made the best videos on orbit & eyeball anatomy on web. you just deserve an award
Excellent simple way explained by you
Thank you very much for the excellent explanation!
Excellent video. Thanks for uploading the video on RUclips. 🖊️📒✔️✨
Thanks aloooot ❤️ u help me in answering a difficult question ur way are great
Wow! Well done!
Thank you sooooooo much !!!! ♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Question: Can I strength train these muscles?
Excellent. Thank you.
Amazing video. Very thorough. Thank you.
I am realy give thanks Millions Millions unspeakable to all the Speakers my lectures in this cellphone company.May God give you all your reward.Thank you
due to the insertion of the superior oblique muscle, posterior to the insertion of the superior rectus, it should cause lateral rotation of the eyeball not medial rotation as mentioned in the video
givemore mhlanga no, he was right it is medial rotation
Thank you very much
It was so useful.
This is amazing! Thank you thank you thank you!
This helped so much. Thanks
If the eye ball is pushed back due to trauma is it possible within surgery that it can be able to be pushed/pulled back Into it’s original position ?
Excellent!!!!Thanks a ton. Please upload more videos on many topics,my humble request
can you tell me why superior oblique action is depression and inferior oblique is elevation?? becz according to their poision they are located as superior and inferior part so they can be elevated or depression but there is just opposite action.
Obliques have opposite action. N rectus have same..
Loved it! Very usefull, thanks
Good luck
Aline Gobett i love you too
thank you dude u made it so easy for me......
Your videos are brilliant
Thank you , thank you so much .You're the BEST
Its very much appreciating.
Thank you very much for your kind effort.
really amazing video. thanks .
Explained very well
Thank you
Thank u very much for making this video
Thank you, your channel is really helpful
What a great video. Thankyou
Thanku sir,really useful sir😊
you guys are blessing !
Well explained ❤
Thank you for your teaching
inf rectus muscle causes adduction ? or abduction ? adduction means medially , but here it shows adduction occurs via inf. rectus which illustrates eyeball moves laterally . just got confused . can you please correct my confusion ? its here on video at time of 5.33
The video does demonstrate the inferior rectus causing adduction. You must be looking at the fact that is causes external ROTATION.
Adduction does mean that the eye moves medially, or toward the midline, you are correct. At 5:33, it illustrates that the inferior rectus depresses (moves the eye down), and also helps with Adduction (which, like you said, means moving the eye toward the midline). It also helps laterally ROTATE which is different than moving the eye laterally. Like Zarian said, rotation in this case means the eye spinning counterclockwise on its axis, whereas movement means the eye turning medially (Adduction).
Yes, both superior and inferior recti cause adduction. Because they run medially in the the orbit ( with the the orbital axis). In addition, when we look from the anteroposterior axis, the superior rectus cause medial rotation, and the inferior rectus cause lateral rotation.
Ref. Moore
Why did the IO get attached posterior to the lateral rectus and not posterior to the IR
Saved my day 👍🏽
Thanks for you that’s good learning lectures in orbital anatomy 🙏🙏🙏🙏🙏❤️😍😍😍
Nice description
I believe there is a major mistake regarding the functions of the superior/inferior rectus muscles in abducted position. Don't the superior/inferior oblique muscles cause depression/elevation in abducted position? Same with the movements in adducted position. Please correct me if I'm wrong.
First you say superior /inferior rectus muscles then you switch to superior /inferior oblique muscles ? Which ones are you asking about ?
so what is the function of internal and external rotation?
Thanks a ton..really helped in understanding muscles
Thank you so much!!! Please keep making videos 🙌 👏
Code:LAST lateral rectus-Abducent nerve
Superior oblique trochlear nerve
great video . 🙌🙌🙌 Thank you for uploading such informative and understanding videis 😌😊
yes good
Meri eyelid muscles week hokr kaafi andr ho gai h dono eyes m difference dikhani deta h but Dr ko Kuc smjh nhi aata h sis aap Kuc btaiye kese thik kru
Myopia caused by the eyeball gets longer right...
Then why we do correction on the cornea not the muscles causing eye ball gets longger?
I don't get it - it says the inferior oblique elevates/ABducts/extorts the eye (which sounds to me like the eye would therefore move up and out) but then it says when the eye is elevated and the eye is ADDucted (i.e. Up and in) it's the inferior oblique causing this.... please help!