loading...| Preferred Name |
petrous part of temporal bone |
| Synonyms |
petromastoid part of temporal bone pars petrosa (os temporale) pars petrosa ossis temporalis petrosal bone petrosal petrous bone temporal bone petrous part |
| Definitions |
The petrous portion of the temporal bone or pyramid is pyramidal 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 for examination a base, an apex, three surfaces, and three angles, and contains, in its interior, the essential parts of the organ of hearing. The petrous portion is among the most basal elements of the skull and forms part of the endocranium.[WP,unvetted]. |
| ID |
http://purl.obolibrary.org/obo/UBERON_0001694 |
| database_cross_reference |
MA:0001477 VHOG:0001553 FMA:52871 EHDAA2:0001452 UMLS:C1261761 GAID:234 EMAPA:17683 MESH:D010579 NCIT:C32316 http://www.snomedbrowser.com/Codes/Details/361733004 http://en.wikipedia.org/wiki/Petrous_part_of_the_temporal_bone |
| definition |
The petrous portion of the temporal bone or pyramid is pyramidal 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 for examination a base, an apex, three surfaces, and three angles, and contains, in its interior, the essential parts of the organ of hearing. The petrous portion is among the most basal elements of the skull and forms part of the endocranium.[WP,unvetted]. |
| depicted_by |
http://upload.wikimedia.org/wikipedia/commons/9/96/Gray137.png |
| external_definition |
The petrosal bone arises from the two otic bones on the lateral wall of the chondrocranium and encases the inner ear of mammals. [Bemis_WE, Functional_Anatomy_of_the_Vertebrates:_An_Evolutionary_Perspective, Grande_L, Third_Edition_(2001)_Orlando_Fla.:_Harcourt_College_Publishers, Walker_WF, p.258, see_Liem_KF][VHOG] |
| has_broad_synonym |
petrosal |
| has_exact_synonym |
petromastoid part of temporal bone pars petrosa (os temporale) pars petrosa ossis temporalis temporal bone petrous part |
| has_obo_namespace |
uberon |
| has_related_synonym |
petrosal bone petrous bone |
| id |
UBERON:0001694 |
| in_subset | |
| label |
petrous part of temporal bone |
| notation |
UBERON:0001694 |
| part_of | |
| prefLabel |
petrous part of temporal bone |
| taxon_notes |
derivative of prootic and opisthotic |
| treeView | |
| subClassOf |