Show pageBacklinksCite current pageExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. The petrous portion, also known as petrosal ridge, is the hardest piece of the [[temporal bone]] and protects the inner ear from damage. It fuses together with the inner pieces of the [[mastoid]] and squama temporalis portions. petrosal_ridge.txt Last modified: 2024/06/07 02:55by 127.0.0.1