Anatomy of Hip Bone / innominate bone / Pelvis ( Osteology ): Ilium, Ischium, Pubis: Animation
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Anatomy of Hip Bone / innominate bone ( Osteology ) : Ilium , Ischium , Pubis
The pelvis is a bony structure that can be found in both male and female skeletons. The exception to this compound structure, when compared to all other bones, is that it has differences that are classified by sex, both for functional and general developmental reasons. The rest of the human skeleton differs only in size, which is genetically determined and is usually slightly larger in males than in females.
The pelvis is formed by four bones which include a pair of hip bones otherwise known as innominate bones, the sacrum, which comes with the five lower sacral bones that are fused together and the coccyx which has four fused and a single individual terminal vertebra. The pelvic girdle consists of the hip bones and the sacrum and its function is to transmit the weight from the upper body to the lower limbs while allowing the body to stay balanced. Meanwhile, the ilium, the ischium, and the pubis fuse together at puberty to form the innominate bones and are joined by the cartilage found in the acetabulum.
The left and right hip bones (innominate bones, pelvic bones) are two irregularly shaped bones that form part of the pelvic girdle - the bony structure that attaches the axial skeleton to the lower limbs.
The hip bones have three main articulations:
Sacroiliac joint - articulation with the sacrum.
Pubic symphysis - articulation between the left and right hip bones.
Hip joint - articulation with the head of the femur.
In this article, we shall look at the anatomy of the hip bones - their composition, bony landmarks, and clinical relevance.
Composition of the Hip Bone
The hip bone is comprised of the three parts; the ilium, pubis, and ischium. Prior to puberty, the triradiate cartilage separates these parts - and fusion only begins at the age of 15-17.
Together, the ilium, pubis, and ischium form a cup-shaped socket known as the acetabulum (literal meaning in Latin is ‘vinegar cup‘). The head of the femur articulates with the acetabulum to form the hip joint.
The Ilium
The ilium is the widest and largest of the three parts of the hip bone and is located superiorly. The body of the ilium forms the superior part of the acetabulum (acetabular roof). Immediately above the acetabulum, the ilium expands to form the wing (or ala).
The wing of the ilium has two surfaces:
Inner surface - has a concave shape, which produces the iliac fossa (site of origin of the iliacus muscle).
External surface (gluteal surface) - has a convex shape and provides attachments to the gluteal muscles.
The superior margin of the wing is thickened, forming the iliac crest. It extends from the anterior superior iliac spine (ASIS) to the posterior superior iliac spine (PSIS).
On the posterior aspect of the ilium, there is an indentation known as the greater sciatic notch.
The Pubis
The pubis is the most anterior portion of the hip bone. It consists of a body, superior ramus and inferior ramus (ramus = branch).
Pubic body - located medially, it articulates with the opposite pubic body at the pubic symphysis. Its superior aspect is marked by a rounded thickening (the pubic crest), which extends laterally as the pubic tubercle.
Superior pubic ramus - extends laterally from the body to form part of the acetabulum.
Inferior pubic ramus - projects towards the ischium.
Together, the superior and inferior rami enclose part of the obturator foramen - through which the obturator nerve, artery, and vein pass through to reach the lower limb.
The Ischium
The ischium forms the posteroinferior part of the hip bone. Much like the pubis, it is composed of a body, an inferior ramus, and superior ramus.
The inferior ischial ramus combines with the inferior pubic ramus forming the ischiopubic ramus, which encloses part of the obturator foramen. The posteroinferior aspect of the ischium forms the ischial tuberosities and when sitting, it is these tuberosities on which our body weight falls.
Near the junction of the superior ramus and body is a posteromedial projection of bone; the ischial spine.
Two important ligaments attach to the ischium:
Sacrospinous ligament - runs from the ischial spine to the sacrum, thus creating the greater sciatic foramen through which lower limb neuro vasculature (including the sciatic nerve) transcends.
Sacrotuberous ligament - runs from the sacrum to the ischial tuberosity, forming the lesser sciatic foramen.
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@anandjitu4438
4 жыл бұрын
I want your contact number because am hirayama disise person
Thank you so much, please continue your great work! God Bless you, Sir!
@doctorbhanuprakash
4 жыл бұрын
🤝🤝🤝
So impressive and detailed!!! an excellent video and watch worthy!!🙌
Thank you so much, for this easy explanation for me Hip bone is one of the complex bone which is really hard to understand. you made it easy to learn! once Again thank you so much.
@doctorbhanuprakash
3 жыл бұрын
Ur most welcome
Way better than tcml
Best explanation ever
Very very useful to this video my tomorrow test
This is truly Amazing👏👏. learned alot from this Awesome channel. I have to say I got inspired and started my own Anatomy channel. You people have my deepest respect. ❤️
@doctorbhanuprakash
Жыл бұрын
Glad to hear it!
Thank You So Much.. very helpful video
Thank u sir.... It was helpful video ❤
It is a very good video ..I think it deserves more appreciation.
@doctorbhanuprakash
4 жыл бұрын
🤝🤝🤝 thank u so much
@drvans17
Жыл бұрын
No
Thank you for uploading this video with this excellent explaination.👍❤️
@doctorbhanuprakash
4 жыл бұрын
🤝🤝🤝
Awesome keep going
Gr8 Effort really Nice.
Very nicely explained and has covered almost all the parts of bdc thanku so much
@doctorbhanuprakash
2 жыл бұрын
Tysm
Thank you it is very helpful video 😊
Thanks for this video
Bht acha explain Sir ...
Hip bone really made easier such a awesome explanation great hats off to you
@doctorbhanuprakash
3 жыл бұрын
Tysm
Clearly understanding....
Thanks ....it's very easy to understand...
Thanks for such a wonderful video! All explanations were fluent and the animations were to helpful. Since then I'll check your contents routinely. 🙏
@doctorbhanuprakash
6 ай бұрын
TYSM
Thank you for this amazing video . Out of many videos related to hip bone, yours was the best. You gave all the information in an easy manner and a beautiful presentation.
@doctorbhanuprakash
Жыл бұрын
Thank you so much
Thanks a million....
Best features of hip bone video on youtube!
@doctorbhanuprakash
11 ай бұрын
Tysm
Best and easy to understand.Thanks for such a great veido.
@doctorbhanuprakash
2 жыл бұрын
You are most welcome
Thank you very much
Great 👏🏻♥️
Thank you dear 😊😊
I don't have words to describe it literally help me a lot thank you very much
@doctorbhanuprakash
3 жыл бұрын
Most welcome 😊
Thank you for this explaintation . I enjoyed a lot
@doctorbhanuprakash
3 жыл бұрын
Glad to hear that!
thank u for your complete explanation(:
@doctorbhanuprakash
3 жыл бұрын
Glad it was helpful!
My brain is on fire 😅
really amazingly explained 💯
@doctorbhanuprakash
4 жыл бұрын
Glad you think so!
Woww....!! 🤩The best one🤩🤩👌❤....keep going...🙌🤝
@doctorbhanuprakash
3 жыл бұрын
Thank you so much 😀
Thanks for the wonderful explanation I really understand it you make it easy for me to understand. 💯💯💯❤️❤️❤️💋
@doctorbhanuprakash
2 жыл бұрын
You are so welcome
Thank you so much.This is sooo helpful
@doctorbhanuprakash
2 жыл бұрын
Ur most welcome
Thankyou soo much for making me understand.
@doctorbhanuprakash
2 жыл бұрын
you are most welcome
Awesome awesome awesome, infinite times thank you very much 🙏🙏🙏
@doctorbhanuprakash
6 ай бұрын
Glad you enjoyed it!
Tq mam👍❤️..
MashahAllah
Thanks alot sir and please cover up the whole gluteal region asap!
@doctorbhanuprakash
4 жыл бұрын
ok suree
Thank you!
@doctorbhanuprakash
7 ай бұрын
You're welcome!
Thanks a lot. ❤
@doctorbhanuprakash
4 ай бұрын
Always welcome
This is More then Enough 💝
@doctorbhanuprakash
3 жыл бұрын
Thank u
Thank YOU so much for this nice demonstration❤ It will be more helpful if you add muscle attachment😢
@doctorbhanuprakash
Жыл бұрын
Will make seperate video for this
thank you so much
@doctorbhanuprakash
Жыл бұрын
Ur most welcome
Animation made it very easy and interesting Nice work
@doctorbhanuprakash
6 ай бұрын
Thank you so much 😀
Ilium - start to 6:10 min Pubis - 6:11 min to 9:51 min Ischium - from 9:52 min
@sugary_pop
7 ай бұрын
It's "Ilium" Please correct before it causes confusion
Alhamdulillah Alhamdulillah... More videos please.... M
thanks a lot sir
@doctorbhanuprakash
3 жыл бұрын
So nice of you
waooo so nice thanks
@doctorbhanuprakash
3 жыл бұрын
Thanks for liking
Love your voice
Nice explanation and easy to understand
@doctorbhanuprakash
3 жыл бұрын
Tysm
This is phenomenal! Thank you 🎉
@doctorbhanuprakash
Жыл бұрын
You're so welcome!
Thanks you🤗☺️
@doctorbhanuprakash
2 жыл бұрын
Thank you too
Clearly understandable😊✨
@doctorbhanuprakash
Жыл бұрын
tysm
Waw mam amazing video ❤love from India.
@doctorbhanuprakash
Жыл бұрын
Thanks a ton
🔥🔥👍👍👍
boht a6a
Sir please made video on types of ossification (endochondral....intramembranous)
@doctorbhanuprakash
4 жыл бұрын
yes for suree ...
We want more vedios wrt femur and humerus..
Allah Ap ko lambi UMER de bot zabardast jazkallah love from pakistan
@doctorbhanuprakash
2 жыл бұрын
Tysm 🙏
👍👍👍👍👍👍
Mam can you send mee the pdf or a ppt of this
I like your voice 😍.... Secondly explenation was awesome 👍
4:45 iliac fossa
Is this video for 1st year mbbs students? Or for osteology dept?
@doctorbhanuprakash
Жыл бұрын
1st year MBBS
@surajyoo
Жыл бұрын
@@doctorbhanuprakash I think there's so much depth just basics are necessary I think so sir?
plz my brother😭 tell me can create this bone within 17 years old boy
6:12
Bht acha explain Sir.....