temporal bone

(redirected from Petrous ridge)
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Related to Petrous ridge: os temporale

temporal bone

either of two compound bones forming part of the sides and base of the skull: they surround the organs of hearing

temporal bone

[′tem·prəl ‚bōn]
(anatomy)
The bone forming a portion of the lateral aspect of the skull and part of the base of the cranium in vertebrates.
References in periodicals archive ?
Therefore, the frontal sinus, ethmoid and mastoid cells equilateral to brain hemiatrophy get larger, the squama of the frontal bone becomes thicker and large sphenoid wing and petrous ridge elevate.
hemiparesis, uMN sign+, Learning disability Case Laterality CT scan of head MRI (additional findings) 1 left Cerebral atrophy, Prominent left prominent sulci, frontal sinus, prominent cerebral peduncle ventricle midline hypoplasia, and shift, bony elevation of left thickening petrous ridge 2 left Cerebral atrophy, NA prominent ventricle, widening of sulci and Sylvian fissure, bony thickening 3 Left Cerebral atrophy, Gliosis in left prominent parietal-occipital ventricle widening cortex, shifting of of sulci and falx towards the Sylvian fissure, same side adjacent thickened calvarium rt: right; UMN: upper motor neuron; MR: mental retardation; NA: not available; GTC: generalized tonic-clonic; CT: computed tomography; MRI: magnetic resonance imaging.
The tumor's intracranial component was found to extend along the petrous ridge to the cavernous sinus anteriorly and to the jugular foramen inferiorly.