Sacral hiatus

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Bone: Sacral hiatus
Gray1213.png
Sagittal section of vertebral canal to show the lower end of the medulla spinalis and the filum terminale.
Li, Lv. First and fifth lumbar vertebra.
SII Second sacral vertebra.
1. Dura mater.
2. Lower part of subarachnoid cavity.
3. Lower extremity of medulla spinalis.
4. Filum terminale internum.
5. Filum terminale externum.
6. Attachment of filum terminale to first segment of coccyx.
Gray96.png
Sacrum, dorsal surface.
Latin hiatus sacralis
Gray's subject #24 107
Dorlands
/ Elsevier
    
h_11/12422058

The laminae of the fifth sacral vertebra, and sometimes those of the fourth, fail to meet behind, and thus a sacral hiatus or deficiency occurs in the posterior wall of the sacral canal.

See also

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.


hu:Hiatus sacralis


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