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Right temporal bone cut open to show the anterior surface of the petrous portion.

Temporal Bone Cut Open

Right temporal bone cut open to show the anterior surface of the petrous portion.

Section through the petrous and mastoid portions of the temporal bone, showing the communication of the cavity of the tympanum with the mastoid antrum.

Section Through Temporal Bone

Section through the petrous and mastoid portions of the temporal bone, showing the communication of…