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Sacrum

sacrum

(Science: anatomy) The triangular-shaped bone lying between the 5th lumbar vertebra and the coccyx (tailbone).

It consists of 5 vertebrae fused together and it articulates on each side with the bones of the pelvis (ilium), forming the sacroiliac joints.


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Bone ID

... a strange bone while I was walking at the C&O Canal. I've searched my memory, friends, and the internet and have considered that it might be a sacrum but nothing quite fits. My boyfriend thinks it might even be a bird skull, but it would be a huge bird and the eye sockets seem too small- plus ...

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by KristenT
Thu Mar 15, 2007 3:21 pm
 
Forum: Zoology Discussion
Topic: Bone ID
Replies: 3
Views: 1028

What is this? REWARD!!!

i thought sort a sacrum looking too. But what kind? that is the question?

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by Linn
Sat Feb 11, 2006 9:31 pm
 
Forum: Zoology Discussion
Topic: What is this? REWARD!!!
Replies: 56
Views: 10194

What is this? REWARD!!!

.. 8) as I said...my professor also said that it was os koxa, combination of os sacrum and os coccyx. For the explanation, just see the hole at both side. My professor said that it wasn't a skull because if it's a skull, then those holes will be located at the back ...

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by victor
Wed Oct 19, 2005 11:46 am
 
Forum: Zoology Discussion
Topic: What is this? REWARD!!!
Replies: 56
Views: 10194

What is this? REWARD!!!

Another concept...how bout this: I can tell that it's a combination of os sacrum and os cocxygea forming os koxa with the asetabulum at both side (see two little round holes at each side). So, If Joker said that the length of this bone is 6 inches (sacrum + coccyx) ...

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by victor
Mon Oct 17, 2005 12:44 pm
 
Forum: Zoology Discussion
Topic: What is this? REWARD!!!
Replies: 56
Views: 10194


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