1. [TA] The smaller of the two membranous sacs in the vestibule of the labyrinth, lying in the spherical recess; it is connected with the cochlear duct by a very short tube, the ductus reuniens, and with the utriculus by the beginning of the ductus endolymphaticus and the ductus utriculosaccularis that joins it. 2. The immense bag-shaped structure formed by peptidoglycans as part of the cell wall of certain microorganisms. SYN: sacculus [TA], sacculus proprius, sacculus vestibuli. [L. sacculus]
- laryngeal s. [TA] a small diverticulum provided with mucous glands extending upward from the ventricle of the larynx between the vestibular fold and the lamina of the thyroid cartilage; it is a vestigial structure, being a much larger structure interdigitating with the neck musculature in some of the great apes, where it serves as a resonating chamber. SYN: sacculus laryngis [TA], appendix ventriculi laryngis, Hilton sac, laryngeal pouch, s. of larynx.
- s. of larynx SYN: laryngeal s..

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sac·cule 'sak-(.)yü(ə)l n a little sac specif the smaller chamber of the membranous labyrinth of the ear

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the smaller 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.

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sac·cule (sakґūl) [L. sacculus] 1. sacculus. 2. sacculus vestibularis.

Medical dictionary. 2011.

Look at other dictionaries:

  • saccule — [ sakyl ] n. m. • 1847; lat. sacculus « petit sac » ♦ Anat. Vésicule placée à la partie inférieure du vestibule de l oreille interne. ● saccule nom masculin (latin sacculus, petit sac) Organe membraneux situé dans le vestibule de l oreille… …   Encyclopédie Universelle

  • Saccule — Sac cule, n. [L. sacculus, dim. of saccus sack.] A little sac; specifically, the sacculus of the ear. [1913 Webster] …   The Collaborative International Dictionary of English

  • saccule — [sak′yo͞ol] n. [L sacculus, dim. of saccus, SACK1] a small sac; esp., the smaller of the two divisions of the membranous labyrinth of the inner ear …   English World dictionary

  • Saccule — Infobox Anatomy Name = Saccule Latin = sacculus GraySubject = 232 GrayPage = 1052 Caption = illustration of otolith organs showing detail of utricle, ococonia, endolymph, cupula, macula, hair cell filaments, and saccular nerve Caption2 = MapPos …   Wikipedia

  • saccule — (Order Decapoda): In antennal gland, proximalmost of two divisions (saccule, labyrinth) of end sac. Consists of simple vesicle or is partitioned internally [Stachowitsch, 1992] …   Crustacea glossary

  • saccule — (sa ku l ) s. m. Terme d anatomie. Une des deux vésicules du vestibule membraneux de l oreille moyenne, logée dans la fossette ronde vestibulaire. Le saccule communique avec l autre vésicule et est tapissé d otoconie. ÉTYMOLOGIE    Lat. sacculus …   Dictionnaire de la Langue Française d'Émile Littré

  • saccule — noun Etymology: New Latin sacculus, from Latin, diminutive of saccus bag more at sack Date: circa 1839 a little sac; specifically the smaller chamber of the membranous labyrinth of the ear …   New Collegiate Dictionary

  • saccule — sacculus …   Dictionary of ichthyology

  • saccule — n. [L. dim. saccus, bag] 1. A small sac or pouch. 2. Sometimes applied to a small invagination of the cuticle …   Dictionary of invertebrate zoology

  • saccule — /sak yoohl/, n. 1. Anat. the smaller of two sacs in the membranous labyrinth of the internal ear. Cf. utricle (def. 3). 2. a little sac. [1830 40; < L sacculus SACCULUS] * * * …   Universalium

  • saccule — noun The smallest chamber of the membranous labyrinth of the ear …   Wiktionary

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