apical orifice


apical orifice
(MOLLUSCA)
An opening at the top or apex of a shell.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • apical — apical, ale, aux [ apikal, o ] adj. et n. f. • 1838; du lat. apex, apicis « sommet » 1 ♦ Relatif à l apex (1o). Croissance apicale : croissance d un organe à partir de cellules spécialisées, localisées dans l apex. 2 ♦ Phonét. Dont l articulation …   Encyclopédie Universelle

  • Cadulus teliger — Taxobox name = Cadulus teliger status = trend = regnum = Animalia phylum = Mollusca classis = Scaphopoda ordo = Dentaliida familia = Gadilidae genus = Cadulus species = C. teliger binomial = Cadulus teliger binomial authority = Finlay, 1927… …   Wikipedia

  • Healing of periapical lesions — Apical periodontitis is typically the body’s defense response to the threat of microbial invasion from the root canal. [Lopez Marcos, JF. Aetiology, classification and pathogenesis of pulp and periapical disease, Med Oral Patol Oral Cir Bucal… …   Wikipedia

  • Foramen — A natural opening. Although a foramen is usually through bone, it can be an opening through other types of tissue, as with the foramen ovale. * * * An aperture or perforation through a bone or a membranous structure. SYN: trema (1). [L. an… …   Medical dictionary

  • POLYZOAIRES — Microscopiques, aquatiques, doués d’un grand pouvoir de bourgeonnement, les Polyzoaires, ou Bryozoaires, forment des colonies, ou zoarium , qui sont composées de nombreuses unités distinctes, ou zoécies, d’où l’appellation de Polyzoaires… …   Encyclopédie Universelle

  • foramen — ● foramen, foramina ou foramens nom masculin (latin foramen, inis, trou) Trou anatomique de petite dimension. ● foramen, foramina ou foramens (expressions) nom masculin (latin foramen, inis, trou) Foramen ovale, persistance d un petit orifice… …   Encyclopédie Universelle

  • ASCOMYCÈTES — Le groupe de Champignons constitué par les Ascomycètes édifie des fructifications souvent complexes, d’aspect et de taille très variables. Beaucoup n’apparaissent à l’œil nu que sous la forme de points ou de glomérules à peine plus gros que des… …   Encyclopédie Universelle

  • Mitral stenosis — Classification and external resources Mitral stenosis with marked thickening of the leaflets and left atrial hypertrophy. Superior view. Autopsy preparation …   Wikipedia

  • opening — A gap in or entrance to an organ, tube, or cavity. SEE ALSO: aperture, fossa, ostium, orifice, pore. access o. SYN: access. aortic o. SYN: aortic hiatus …   Medical dictionary

  • Epididymis — 1: Epididymis 2: Head of epididymis 3: Lobules of epididymis 4: Body of epididymis 5: Tail of epididymis 6: Duct of epididymis 7: Deferent duct (ductus deferens or vas deferens) …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.