One of three half-circular, interconnected tubes located inside each ear[WP]. [ http://en.wikipedia.org/wiki/Semicircular_canal ]

Synonyms: semicircular canals

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, pheno_slim, vertebrate_core

plural term
semicircular canals [ TAO:0000431 ]

plural term
semicircular ducts [ XAO:0000198 ]

plural term
ductus semicirculares [ FMA:TA FMA:71880 http://purl.obolibrary.org/obo/BTO_0003383 ]

depicted by

http://upload.wikimedia.org/wikipedia/commons/3/33/Balance_Disorder_Illustration_A.png

external definition

Fluid-filled toroidal spaces, arranged orthogonally to each other in the ear, that detect angular accelerations. (See Anatomical Atlas entry for semicircular canals by T. Whitfield.)[TAO]

external ontology notes

MA divides this into osseous and duct. In FMA, this is systemically part of the bony labyrinth. Note this is an anatomical space in ZFA. The MA treatment has advantages for representing the neuroepithelium, which should not be part of bone. Also check duct vs canal

function notes

detects angular acceleration

has related synonym

canalis semicircularis

scc

ductus semicirculares

semicircular ducts

homology notes

In gnathostomes, each membranous labyrinth has three semicircular ducts that connect with a chamber known as the utriculus. These ducts are sometimes called canals, but technically the term semicircular canal applies to the spaces in the osseus labyrinth in which the semicircular ducts lie.[uncertain][VHOG]

id

UBERON:0001840