Terminology Service for NFDI4Health
tympanic ring
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http://purl.obolibrary.org/obo/UBERON_0002218
A C-shaped membranous bone that provides physical support to the tympanic membrane. The tympanic ring develops sequentially from an initial primordium in the first branchial arch growing in a circumferential fashion around the first pharyngeal cleft into the second branchial arch (Mallo and Gridley, 1996). In most mammals, the tympanic ring exists only during embryonic life, when it coordinates proper development and positioning of the eardrum (see below), and then becomes integrated into the temporal bone[PMID]. [ http://www.ncbi.nlm.nih.gov/pubmed/11237469 ]
Term info
Label
tympanic ring
Subsets
pheno_slim
axiom lost from external ontology
relationship loss: part_of plectral apparatus (AAO:0000443)[AAO]
comment
Gene notes: Gsc and Prx1 are essential for tympanic ring development
editor note
check amphibians
external definition
Funnel-like ring structure located lateral to the ventral ramus of the squamosal, beneath the skin; it provides support to the tympanic membrane.[AAO]
external ontology notes
in AAO 'Funnel-like ring structure located lateral to the ventral ramus of the squamosal, beneath the skin; it provides support to the tympanic membrane'., in FMA, the tympanic ring is an anatomical line. Howevever http://www.ncbi.nlm.nih.gov/pubmed/11237469 states: 'the tympanic ring, which serves as support for the tympanic membrane, directs invagination of the first pharingeal cleft ectoderm to form the external acoustic meatus (EAM), which provides the outer layer of the membrane'.
has obo namespace
uberon
has related synonym
os tympanicum, tympanic anulus, tympanic membrane annulus, tympanic annulus, ectotympanic ring
id
UBERON:0002218
Term relations
Subclass of: