Terminology Service for NFDI4Health
tegmen tympani
Go to external page
http://purl.obolibrary.org/obo/UBERON_0006837
The Tegmental Wall or Roof (paries tegmentalis) is formed by a thin plate of bone, the tegmen tympani, which separates the cranial and tympanic cavities. It is situated on the anterior surface of the petrous portion of the temporal bone close to its angle of junction with the squama temporalis; it is prolonged backward so as to roof in the tympanic antrum, and forward to cover in the semicanal for the Tensor tympani muscle. Its lateral edge corresponds with the remains of the petrosquamous suture[Grays] . [ http://education.yahoo.com/reference/gray/subjects/subject/230 ]
Term info
Label
tegmen tympani
Synonyms
- paries tegmentalis cavi tympani
- tegmental roof of tympanic cavity
- tegmental wall of tympanic cavity
Subsets
dubious_grouping
a synonym made on the basis of a possibly homologous structure in another species
processus squamosus
[
AAO
:
0000116
]
a synonym made on the basis of a possibly homologous structure in another species
crista parotica
[
AAO
:
0000116
]
editor note
TODO - check AAO; grouping is made on basis of related synonym. Crista parotica: seems to be the same as the crista prootica. However, since this lateral ridge of the otic capsule is frequently formed by the opisthotic, rather than the prootic, this may be a better name.; Crista prootica: a ledge or ridge which elaborates the dorsal surface of the prootic or, more generally, the roof of the otic capsule, laterally. The crista may extend posteriorly & laterally, continuous with the paroccipital process, and/or anteriorly or anteroventrally to protect cranial nerve foramina and form part of the fenestra ovalis/vestibuli. In basal tetrapodomorphs and tetrapods, the crista prootica forms the floor of the posttemporal fenestra. See The Prootic. In many tetrapods, the crista prootica is not ossified, or incompletely ossified. However, in frogs, the crista is the main strut joining the skull roofing bones (frontoparietals) with the squamosals. The crista prootica has a similarly expanded role in mammals where it forms an important part of the epitympanic recess and anchors the tympanohyal.
has obo namespace
uberon
has related synonym
processus squamosus, processus muscularis capsulae auditivae, crista parotica, crista prootica
id
UBERON:0006837