Sacrum
In humans, the sacrum is a large, triangular bone. It is at the bottom of the spine and the upper and back part of the pelvis.
| Sacrum | |
|---|---|
 Sacrum, pelvic surface | |
 Image of a male pelvis (sacrum is in center) | |
| Details | |
| Identifiers | |
| Latin | Os sacrum |
| MeSH | D012447 |
| TA | A02.2.05.001 |
| FMA | 16202 |
| Anatomical terms of bone | |
It fits like a wedge between the two hip bones. Its upper part connects with the last lumbar vertebra, and bottom part with the coccyx (tailbone). During the first half of life these bones gradually fuse together.
The sacrum is concave facing forward, and tilted forward. The sacrum connects with four bones:
- the last lumbar vertebra above
- the coccyx (tailbone) below
- the illium portion of the hip bone on either side
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.