utricle

utricle
SYN: utriculus [TA], sacculus communis.
- prostatic u. [TA] a minute pouch in the prostate that opens on the summit of the seminal colliculus, the analog of the uterus and vagina in the female, being the remains of the fused caudal ends of the paramesonephric ducts. SYN: utriculus prostaticus [TA], masculine uterus, Morgagni sinus (2), sinus pocularis, uterus masculinus, vagina masculina, vesica prostatica, Weber organ.
- u. of vestibular labyrinth [TA] the larger of the two membranous sacs in the vestibule of the labyrinth, lying in the elliptical recess; from it arise the semicircular ducts.

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utri·cle 'yü-tri-kəl n a small anatomical pouch: as
a) the part of the membranous labyrinth of the ear into which the semicircular canals open called also utriculus
b) PROSTATIC UTRICLE
utric·u·lar yu̇-'trik-yə-lər adj

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n.
1. the larger of the two membranous sacs within the vestibule of the ear: it forms part of the membranous labyrinth. It is filled with fluid (endolymph) and contains a macula. This responds to gravity and relays information to the brain about the position of the head.
2. a small sac (the prostatic utricle) extending out of the urethra of the male into the substance of the prostate gland.

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utri·cle (uґtrĭ-kəl) [L. utriculus] 1. any small sac. 2. utriculus (def. 2).

Medical dictionary. 2011.

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  • utricle — [yoo trik′yə ləs] n. pl. utriculi [yo͞o trik′yəlī΄yo͞o′tri kəl] n. [< Fr or L: Fr utricule < L utriculus, little bag or bottle, dim. of uter, leather bag, wineskin, prob. via Etr < Gr hydria, water bag, jug < hydor, WATER] a small sac …   English World dictionary

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  • utricle — utriculus; n. 1) the larger of the two membranous sacs within the vestibule of the ear: it forms part of the membranous labyrinth. It is filled with fluid (endolymph) and contains a macula. This responds to gravity and relays information to the… …   The new mediacal dictionary

  • Utricle (ear) — Infobox Anatomy Name = PAGENAME Latin = utriculus GraySubject = 232 GrayPage = 1051 Caption = illustration of otolith organs showing detail of utricle, otoconia, endolymph, cupula, macula, hair cell filaments, and saccular nerve MapCaption =… …   Wikipedia

  • utricle — noun Etymology: Latin utriculus, diminutive of uter leather bag Date: 1731 any of various small pouches or saccate parts of an animal or plant: as a. the part of the membranous labyrinth of the inner ear into which the semicircular canals open b …   New Collegiate Dictionary

  • utricle — utriculus …   Dictionary of ichthyology

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  • utricle — /yooh tri keuhl/, n. 1. a small sac or baglike body, as an air filled cavity in a seaweed. 2. Bot. a thin bladderlike pericarp or seed vessel. 3. Anat. the larger of two sacs in the membranous labyrinth of the internal ear. Cf. saccule (def. 1).… …   Universalium

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