Sacral hiatus

Sacral hiatus

Infobox Bone
Name = Sacral hiatus
Latin = hiatus sacralis
GraySubject = 24
GrayPage = 107


Caption = 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.


Caption2 = Sacrum, dorsal surface.
System =
MeshName =
MeshNumber =
DorlandsPre = h_11
DorlandsSuf = 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.

ee also

* Lumbar puncture

External links

*
* - "The Back, Posterior View"
* - "The Female Pelvis: Sacrum"


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