SACRUM

A flattened- triangular bone forming postero-superior aspect of pelvis...

[ifrayousuf]

QUICK REVIEW👇
SACRUM : fusion of 5 sacral vertebrae
💫Base( upper end)_ body of S1 vertebrae+ sacral promontery+ala
Ala_ lateral( rough part)(post.-lumbosacral lig. ; ant..- iliacus)
medial( smooth part)_ related to OILS( obturator n.; iliolumbar a.; lumbosacral trunk.; sympathetic chain)
margin of ala- ventral sacroiliac lig.
💫Apex( lower end)_ S5 ( joint with coccyx)
{4 surfaces}
💫Pelvic surface( ant.)_ 4 transverse ridges( fusion of bodies)
• 4 pelvic sacral foramina( comm. with sacral canal via intervertebral foramina)
• median sacral a.( middle) ; symp. chain( medial margin of sacral foramena); piriformis(E-shape)(lateral sacral masses)
💫Dorsal surface(post.)_
• median sacral crest( spines)...no fusion in lowermost lamina( sacral hiatus instead of spine)...sacral hiatus gives passage to
• intermediate sacral crest(articular tubercles)...lowermost articular process(S5) is called sacral cornu
• lateral sacral crest( transverse tubercles)
• 4 dorsal sacral foramina( comm. with sacral canal via intervertebral foramina)
• Sacral canal- ( cauda equina, filum terminale, (dura mater and subarachanoid memb.)
• attachments_ erector spinae( U shape);multifidus
💫Lateral surfaces_Auricular surface- Sacroiliac joint
post. to aur. surface- interosseus sacroiliac lig.
below aur. surface- gluteus maximus; sacrotuberous lig.; sacrospinous lig.; coccygeus m.
further down- inferolateral sacral angles

[saxena.apoorv]

Instead of SLIO, use OILS from lateral to medial. Or use "Oh I Love Sacrum"=OILS.

[waqarasghar]

appreciation from Pakistan sir ....ur vedios r really a blessing for medical students

[warriorrforever]

I had watched all your videos to prepare for bones, for our university exams. The external examiner(who came from MH's best college) had asked me questions about sacrum. (I don't remember the qs because it has been 2yrs since). I answered. He was so impressed that he said he's going to give me full marks and that I deserved to be in a better college, and that I can call him if I needed any help in the future. It was like the best day ever, I still remember that moment fondly.
Thank you sir🙏 Your videos helped me alot.

[gayathrijinesh]

The time I wasted reading osteology out of textbook!!!.
Sir, u r a great teacher. Hats off.

[abulc.]

Thank you so much sir, ,
Salute from BANGLADESH

[shravansinghrajpurohitkrp]

Seeing video today to give viva Imagining a situation where u might be taking my

[madhumitha]

Ur video is time saving...really helpful...#viva vibes😁

[bagadimusic]

Tq so much sir for ur explanation. I learn ostelology from ur videos. U saved me for exams

[ghazalag]

thanks a lot sir. tommorow is my viva and u can better understand my condition and this time ur vedio help me a lot.

[yingdongxiao]

my viva is tomorrow thank you for saving

[saxena.apoorv]

You are really doing a very great job. Thank you very much.

[sameeraandileeb]

Sir thank you so video is the only way for me to secure marks in anatomy...

[gored]

Ur videos are just amazing.. u totally followed bdc so we cannot be confused.. thank u soooo much 😊😊❤💜 from nepal..

[kekasarkar]

excellent video sir.
keep it up.
you are a blessing for mbbs students.

[amishamahanty]

Sir if u kindly demonstrate the viscera we will be benefited.

[sudharsanh]

Very nice Video. I am from non medical background. Suffering from sacral pain. Searching for sacrum anatomy. You explained it very well. Thanks.

[shubhamchaurasiya]

Nice sir
Very helpfull video
Thanks sir....😊😊😊😊😊☺

[afsanarahman]

Your video is very much helpful and clear

[alokumkum]

Sir, I am a big fan of your channel. I am from Bangladesh 🇧🇩🇧🇩.Thank you a lot sir for the effort you made for us .Your videos help us very much.it gives us a clear conception. Thank you sir again💙💙💙