| margo posterior partis petrosae ossis temporalis | The margin of the petrous part of the temporal bone that extends from the apex to the jugular notch; it articulates with the basal and jugular portions of the occipital bone. Synonym: margo posterior partis petrosae ossis temporalis. (05 Mar 2000) |
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| margo sagittalis ossis parietalis | The medial border of the parietal bone entering into the sagittal suture. Synonym: margo sagittalis ossis parietalis. (05 Mar 2000) |
| margo sphenoidalis ossis temporalis | The part of the border of the squamous part of the temporal bone that articulates with the greater wing of the sphenoid. Synonym: margo sphenoidalis ossis temporalis. (05 Mar 2000) |
| margo squamosus ossis parietalis | The lateral border of the parietal bone that articulates with the squamous part of the temporal bone. Synonym: margo squamosus ossis parietalis. (05 Mar 2000) |
| margo squamosus ossis sphenoidalis | The margin of the greater wing of the sphenoid bone that articulates with the squamous part of the temporal bone. Synonym: margo squamosus ossis sphenoidalis. (05 Mar 2000) |
| margo superior partis petrosae ossis temporalis | The margin that separates the anterior and posterior surfaces of the petrous part of the temporal bone and the lateral part of the middle cranial fossa from the posterior cranial fossa. Synonym: margo superior partis petrosae ossis temporalis, crest of petrous part of temporal bone. (05 Mar 2000) |
| pars basilaris ossis occipitalis | The part of the occipital bone that lies anterior to the foramen magnum and joins with the body of the sphenoid bone. Synonym: pars basilaris ossis occipitalis, basal part of occipital bone, basilar apophysis, basilar process of occipital bone, basilar process, basiocciput. (05 Mar 2000) |
| pars lateralis ossis occipitalis | The part of the occipital bone that lies on either side of the foramen magnum. Synonym: pars lateralis ossis occipitalis, exoccipital bone. (05 Mar 2000) |
| pars lateralis ossis sacri | The lateral mass of the sacrum formed by the fused costal elements. Synonym: pars lateralis ossis sacri. (05 Mar 2000) |
| pars mastoidea ossis temporalis | The portion of the petrous part of the temporal bone bearing the mastoid process. Synonym: pars mastoidea ossis temporalis. (05 Mar 2000) |
| pars nasalis ossis frontalis | Nasal portion of the frontal bone which lies between the two orbital parts anteriorly and forms part of the roof of the nasal cavity. Synonym: pars nasalis ossis frontalis. (05 Mar 2000) |
| pars orbitalis ossis frontalis | The portion of the frontal bone that contributes to the formation of the orbits; the most rostral of three cortical convolutions that togetther form the inferior frontal gyrus. Synonym: pars orbitalis ossis frontalis. (05 Mar 2000) |
| pars petrosa ossis temporalis | The part of the temporal bone that contains the structures of the inner ear and the second part of the internal carotid artery; in antenatal life it appears as a separate ossification centre. Synonym: pars petrosa ossis temporalis, periotic bone, petrosal bone, petrous pyramid. (05 Mar 2000) |
| pars squamosa ossis temporalis | The broad, flat, thin (scale-like) anterior and superior portion of the temporal bone forming part of the lateral wall of the cranial vault. Synonym: pars squamosa ossis temporalis, squama temporalis, temporal squama. (05 Mar 2000) |
| pars tympanica ossis temporalis | The bony plate forming the greater part of the anterior wall of the bony part of the external acoustic meatus and the tympanic cavity and the posterior wall of the mandibular fossa. Synonym: pars tympanica ossis temporalis, tympanic part of temporal bone. (05 Mar 2000) |