utriculus


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to utriculus: Utriculus prostaticus

u·tri·cle

(yū'tri-kĕl),
1. A small sac or pouch. A dilated portion of the membranous labyrinth receiving the ampullae of the semicircular canals; contains an area of sensory epithelium, the macula utriculi.
Synonym(s): sacculus communis, utriculus (1)
[L. diminutive form of uter, leather bag]

utriculus

(yo͝o-trĭk′yə-ləs)
n. pl. utricu·li (-lī′) Biology
A sac or pouch.

u·tri·cle

(yū'tri-kĕl)
1. A small sac or pouch.
2. The larger of the two membranous sacs in the vestibule of the membranous labyrinth of the internal ear, lying in the elliptic recess; from it arise the semicircular ducts.
Synonym(s): utriculus [TA] .
[L. diminutive form of uter, leather bag]

ves·tib·u·lar or·gan

(ves-tib'yū-lăr ōr'găn)
Collective term for the utricle, saccule, and semicircular ducts of the membranous labyrinth; each has a patch of ciliated receptor epithelium innervated by the vestibular nerve.
References in periodicals archive ?
The flower is subtended by the spikelet prophyll, which forms an utriculus that envelops flower, rachilla and distal glume (Fig.
In affected patients, motion of the head and/or eyes can stimulate the utriculus vestibuli and cause a vertiginous episode of approximately 1 minute; such episodes are sometimes followed by disequilibrium.
The space for the utriculus and sacculus is not more than a small connection to the area in which the cochlear duct is located.
(1987) showed that Cherbonniera utriculus has a gonad with fewer than 10 small, even-sized tubules.