semicircular duct
Any of the three loop-shaped membranous inner tubular parts of the semicircular canals that are about one-fourth the diameter of the corresponding outer bony canals, that communicate at each end with the utricle, and that have near one end an expanded ampulla containing an area of sensory epithelium [ http://dictionary.reference.com/browse/semicircular+duct ]
Term info
semicircular duct
TODO - check canal vs duct. see Wikipedia:File:Gray927.png
uberon
membranous semicircular canal, ductus semicirculares
In gnathostomes, each membranous labyrinth has three semicircular ducts that connect with a chamber known as the utriculus (...); Gnathostome ears have a horizontal semicircular duct. This brings their complement to three semicircular ducts, a pattern retained throughout gnathostome evolution.[well established][VHOG]
UBERON:0001856
Term relations
- tube
- ectoderm-derived structure
- structure with developmental contribution from neural crest
- part of some semicircular canal
- part of some vestibular labyrinth