Petrous portion (From Latin ''petrous'' 'rocky') may refer to:
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Petrous portion of the temporal bone
The petrous part of the temporal bone is pyramid-shaped and is wedged in at the base of the skull between the sphenoid and occipital bones. Directed medially, forward, and a little upward, it presents a base, an apex, three surfaces, and three a ...
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Petrous portion of the internal carotid artery Petrous portion (From Latin ''petrous'' 'rocky') may refer to:
* Petrous portion of the temporal bone
* Petrous portion of the internal carotid artery
Human anatomy
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