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Medical Term:

petrous part of temporal bone


the part of the temporal bone that contains the structures of the inner ear and the second part of the internal carotid artery; in prenatal life it appears as a separate ossification center.

Synonym(s): pars petrosa ossis temporalisTA, periotic bone, petrosal bone, petrous bone, petrous pyramid

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.