Osteology

Radiograph of sacrum, anteroposterior view

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Image #208-7
Bassett ImageDiagram Image
Legend Image
Osteology
Radiograph of sacrum, anteroposterior view
1 . Base of sacrum
2 . Transverse line (remnant of intervertebral disc S. I-II; note similar transverse lines at lower levels of sacrum)
3 . Lateral part
4 . Sacral hiatus (pointers indicate margins)
5 . Apex of sacrum
6 . Intervertebral foramen (pointers indicate upper and lower walls of foramen)
7 . Articular surface (note dense bone underlying the articular surface for the ilium as well as heavy bony trabeculae passing medially and upward toward base)
8 . Middle sacral crest (in background)
9 . Pelvic sacral foramen (dorsal sacral foramen visible in background)