canaliculus
A small canal or channel. SEE ALSO: iter. [L. dim. fr. canalis, canal]
- anterior c. of chorda tympani a canal in the petrotympanic or glaserian fissure, near its posterior edge, through which the chorda tympani nerve issues from the skull. SYN: Civinini canal, Huguier canal, iter chordae anterius.
- auricular c. SYN: mastoid c..
- biliary c. one of the intercellular channels, about 1 μm or less in diameter, that occur between liver cells forming the first portion of the bile system. SYN: bile capillary.
- bone c. the c. interconnecting bone lacunae with one another or with a haversian canal; contains the interconnecting cytoplasmic processes of osteocytes.
- caroticotympanic canaliculi [TA] small openings within the carotid canal that afford passage to the tympanic cavity of branches of the internal carotid artery and carotid sympathetic plexus. SYN: canaliculi caroticotympanici [TA].
- canaliculi caroticotympanici [TA] SYN: caroticotympanic canaliculi.
- c. chordae tympani [TA] SYN: posterior c. of chorda tympani.
- c. of chorda tympani SYN: posterior c. of chorda tympani.
- c. cochleae [TA] SYN: cochlear c..
- cochlear c. [TA] a minute canal in the temporal bone that passes from the cochlea inferiorly to open in front of the medial side of the jugular fossa. It contains the perilymphatic duct. SYN: c. cochleae [TA].
- canaliculi dentales minute, wavy, branching tubes or canals in the dentin; they contain the long cytoplasmic processes of odontoblasts and extend radially from the pulp to the dentoenamel junction. SYN: dental tubules, dentinal canals, dentinal tubules, tubuli dentales.
- c. innominatus SYN: foramen petrosum.
- intercellular c. one of the fine channels between adjoining secretory cells, such as those between serous cells in salivary glands.
- intracellular c. a fine canal formed by invagination of the cell membrane into the cytoplasm of a cell, such as those of the parietal cells of the stomach.
- lacrimal c. [TA] a curved canal beginning at the lacrimal punctum in the margin of each eyelid near the medial commissure and running transversely medially to empty with its fellow into the lacrimal sac. SYN: c. lacrimalis [TA].
- c. lacrimalis [TA] SYN: lacrimal c..
- mastoid c. [TA] the canal that extends from the jugular fossa laterally through the mastoid process. It transmits the auricular branch of the vagus. SYN: c. mastoideus [TA], auricular c..
- c. mastoideus [TA] SYN: mastoid c..
- posterior c. of chorda tympani a canal leading from the facial canal to the tympanic cavity through which the chorda tympani nerve enters this cavity. SYN: c. chordae tympani [TA], c. of chorda tympani, iter chordae posterius, small canal of chorda tympani.
- c. reuniens SYN: ductus reuniens.
- Thiersch canaliculi minute channels in newly formed reparative tissue, permitting the circulation of nutritive fluids, precursors of new vascularization.
- tympanic c. [TA] a minute canal passing from the inferior surface of the petrous portion of the temporal bone between the jugular fossa and carotid canal to the floor of the tympanic cavity. Located in the wedge of bone separating the jugular canal and carotid canal, it transmits the tympanic branch of the glossopharyngeal nerve. SYN: c. tympanicus [TA], Jacobson canal, tympanic canal.
- c. tympanicus [TA] SYN: tympanic c..

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can·a·lic·u·lus -yə-ləs n, pl -li -.lī, -.lē a minute canal in a bodily structure: as
a) one of the hairlike channels ramifying a haversian system in bone and linking the lacunae with one another and with the haversian canal
b) one of the narrow spaces between cells in the anastomosing cords of cells that make up a liver lobule

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n. (pl. canaliculi)
a small channel or canal. Canaliculi occur, for example, in compact bone, linking lacunae containing bone cells. Bile canaliculi are minute channels within the liver that transport bile to the bile duct. Lacrimal canaliculi drain tears into the lacrimal sac (see lacrimal apparatus).

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can·a·lic·u·lus (kan″ə-likґu-ləs) pl. canalicґuli [L. dim. of canalis] an extremely narrow tubular passage or channel. canalicular adj

Medical dictionary. 2011.

Look at other dictionaries:

  • Canaliculus —   [lateinisch »kleine Röhre«, »kleiner Kanal«] der, /...li, Anatomie: kleiner Körperkanal, z. B. Canaliculus chordae tympani, Kanälchen vom Fazialiskanal zur Paukenhöhle …   Universal-Lexikon

  • Canaliculus — Can a*lic u*lus, n.; pl. {Canaliculi}. [L.] (Anat.) A minute canal. [1913 Webster] …   The Collaborative International Dictionary of English

  • canaliculus — [kan΄ə lik′yo͞oləs] n. pl. canaliculi [kan΄ə lik′yo͞olī΄] [L, dim. of canalis, groove: see CANAL] Anat. Biol. a very small groove, or canal, as in bone …   English World dictionary

  • Canaliculus — A canaliculus is an anatomical term used to describe a small passageway.Examples include:*Canaliculus (bone), a small channel found in ossified bone *Canaliculus (parietal cell), an adaptation found on gastric parietal cells *The lacrimal… …   Wikipedia

  • Canaliculus — Ca|na|li|cu|lus [...kulus] der; , ...li <aus lat. canaliculus, Verkleinerungsform von canalis, vgl. ↑Canalis> kleiner Körperkanal (Med.) …   Das große Fremdwörterbuch

  • Canaliculus — kanaliukas statusas T sritis histologija, ląstelių chemija, histologinė chemija, audinių kultūra atitikmenys: lot. Canaliculus ryšiai: platesnis terminas – tarpląstelinė medžiaga …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • Canaliculus — kanaliukas statusas T sritis histologija atitikmenys: lot. Canaliculus ryšiai: platesnis terminas – tarpląstelinė medžiaga …   Medicininės histologijos ir embriologijos vardynas

  • canaliculus — noun (plural canaliculi) Etymology: Latin, diminutive of canalis Date: circa 1839 a minute canal in a bodily structure • canalicular adjective …   New Collegiate Dictionary

  • canaliculus — (plural canaliculi)) 1) a small branch of a canal or duct; (plural canaliculi) 2) a small tubule interconnecting lacunae to neighbouring capillaries …   Dictionary of ichthyology

  • canaliculus — n.; pl. uli [L. dim. canalis, channel] 1. A minute canal. 2. (ARTHROPODA: Insecta) In Lepidoptera, an elongate sclerotized structure that functions as a support or guide for the aedeagus. 3. (BRYOZOA: Stenolaemata) The large style inflecting… …   Dictionary of invertebrate zoology

  • canaliculus — canalicular, canaliculate /kan l ik yeuh lit, yeuh layt /, canaliculated, adj. canaliculation /kan l ik yeuh lay sheuhn/, n. /kan l ik yeuh leuhs/, n., pl. canaliculi / luy /. Anat., Zool. a small canal or tubular passage, as in bone. [1555 65; < …   Universalium

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