anterior surface of petrous part of temporal bone

an·te·ri·or sur·face of pet·rous part of temporal bone

[TA]
the surface of the petrous part of the temporal bone contributing to the floor of the middle cranial fossa.

an·te·ri·or sur·face of pet·rous part of tem·po·ral bone

(an-tērē-ŏr sŭrfăs petrŭs pahrt tempŏr-ăl bōn) [TA]
Surface of the petrous part of the temporal bone contributing to floor of middle cranial fossa.
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