Quadratus Lumborum Anatomy: Origin, Insertion & Action
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- Опубліковано 3 лип 2024
- ⭐ Quadratus Lumborum Muscle Anatomy ⭐
💪 Origin: Inner lip of iliac crest and the iliolumbar ligament.
💪 Insertion: Twelfth rib and the transverse processes of vertebra L1-L4.
💪 Action: Can assist with inspiration by bracing the twelfth rib, bilateral contraction can assist with extension of the trunk, unilateral contraction can assist with lateral flexion of the trunk and it can also weakly assist with stabilization of spine and pelvis.
💪 Nerve: 12th thoracic intercostal nerve, iliohypogastric nerve and the ilioinguinal nerve.
💪 Artery: Lumbar arteries and a lumbar branch of the iliolumbar artery.
Chapters:
0:00 - Intro
0:13 - Location & overview of the quadratus lumborum
1:25 - Origin of the quadratus lumborum
2:09 - Insertion of the quadratus lumborum
2:54 - Actions of the quadratus lumborum
⭐ Want to learn more about the quadratus lumborum? Then check out the full article on the Bodyworks Prime website: bodyworksprime.com/quadratus-...
⭐ If you would like some help memorising the quadratus lumborum's information then be sure to check out the free flashcards here: bodyworksprime.com/quadratus-...
⭐ The quadratus lumborum biomechanics study I mentioned in the video by S Phillips, S Mercer, and N Bogduk can be found here: journals.sagepub.com/doi/epdf...
#BodyworksPrime #Anatomy #QuadratusLumborum #QL
Nicely done. I'm a long practicing chiropractor/Applied Kinesiologist, and have been manual muscle testing for 38 years. You are so right -- the QL is very often depicted as being much more "quadralateral" in shape.. and is more often than not shown reaching to the tip of rib 12. Jusat as a crazy aside - I have found for years that an inhibited QL when tested supine is often abolished by an appropriate adjustment of occiput (usually, bu not always lateral on the side of weakness). Great channel. Kudos. Dr. J
Well done and thanks a lot! You are excellent in explaining. Just found ur channel and am grateful
I appreciate your videos so much, you make it so easy to understand by frequently defining the vocabulary and by using illustrations. I particularly enjoy learning the functions of each muscle and appreciate how you list them. My study tip is that I exercise the muscle that I am learning about as I digest this information. As I do so I recount the information I just learned. Again, thank you for these amazing videos!
That is great to hear, I am glad my videos have been able to help 👍. That's a really good study tip too! Thanks for sharing it.
Thank you a lot, Mr.! I do exercises.
Great explanation with practical example, knowledable and really helpful. Thank you for making these videos 🙏
No problems. Happy to hear my videos have been helpful. Thanks for watching!
Love the video. Clear, easy to understand, definite and straight-forward, explained at just the right pace! Looking forward to learning more from you.
Awesome, thank you! Happy to hear you enjoyed the video
Understood well.😊
Well done
Brilliant.
I love all of your videos. So helpful as I study massage therapy. Thank you!!! ❤🎉
Glad to help. Hope your studies are going well!
@@BodyworksPrime so far so good! Although on my muscle test yesterday I mixed up the origin and insertion of the QL! Ahhhh (my instructor gave me credit anyway).
@@SarahMontana666 Good to hear it's going well. Mixing up the O/I is easily done, there are so many muscles to remember after all! I've got flashcards on my website for all the muscles I've done videos for so far. They may be helpful for further memorisation.
These videos are super helpful. Keep at it, and thank you!
Thanks, will do! Glad they have been helpful 👍
Thank you
No problem. Thanks for watching!
best ..........explanation
Thanks!
Well done as always 😂
Thank you!
I want to echo the previous comments of how brilliant and at the same time so practical your videos are… I have subscribe to your channel… I love your videos… Please keep it up
Thank you for the kind words :) hopefully I should have some new videos out soon. Uploads are a little slower at the moment due to me recently starting a physiotherapy masters degree.
🙏👍
Am I correct in recalling (I think) that the QL is essential in the upward (unilateral because bi-lateral would not be possible) flexsion of the hip (illiac)? So when I pull up one of the illiac crests toward my head, unilaterally, it is the QL that does the lifting?
QL contribution to these movements is pretty weak compared to other muscles. There is a trend at the moment of social media influencers blaming everything on the QL and overstating its importance, despite it being a pretty weak and small muscle. It's like all these influencers get together every year and spin a wheel to decide a random obscure muscle to demonize. Even if you didn't have a QL at all, you could still perform those actions. I go onto details about the QL's contribution in my QL article on my website, in the 'actions' section, it has references to back up the data too, so give it a read as you'll probably find it interesting: bodyworksprime.com/quadratus-lumborum/ thanks for watching and taking the time to comment 🙌
Its all really a very well engineered cooperative effort of a system of muscles isn't it. @@BodyworksPrime