fontanelle

One of several membranous intervals at the margins of the cranial bones in the infant. See cranial fontanelles. SYN: fonticulus. [Fr. dim. of fontaine, fountain, spring]
- anterior f. [NA] a diamond-shaped membranous interval at the junction of the coronal, sagittal, and metopic sutures where the frontal angles of the parietal bones meet the two ununited halves of the frontal bone. SYN: bregmatic f., fonticulus anterior, frontal f..
- bregmatic f. SYN: anterior f..
- Casser f. SYN: mastoid f..
- cranial fontanelles [NA] the membranous intervals between the angles of the cranial bones in the infant; they include the midline anterior fontanel and posterior fontanel, and the paired sphenoidal fontanel and mastoid fontanel. SYN: fonticuli cranii.
- frontal f. SYN: anterior f..
- Gerdy f. SYN: sagittal f..
- mastoid f. [NA] the membranous interval on either side between the mastoid angle of the parietal bone, the petrous portion of the temporal bone, and the occipital bone. SYN: fonticulus mastoideus [NA], fonticulus posterolateralis, Casser f., posterolateral f..
- occipital f. SYN: posterior f..
- posterior f. a triangular interval at the union of the lambdoid and sagittal sutures where the occipital angles of the parietal bones meet the occipital. SYN: fonticulus posterior, occipital f..
- posterolateral f. SYN: mastoid f..
- sagittal f. [NA] an occasional fontanel-like defect in the sagittal suture in the newborn. SYN: Gerdy f..
- sphenoidal f. [NA] an irregularly shaped interval on either side where the frontal, sphenoidal angle of the parietal, squamous portion of the temporal and greater wing of the sphenoid meet. SYN: fonticulus sphenoidalis [NA], fonticulus anterolateralis, anterolateral f..

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n.
an opening in the skull of a fetus or young infant due to incomplete ossification of the cranial bones and the resulting incomplete closure of the suture. The anterior fontanelle occurs where the coronal, frontal, and sagittal sutures meet; the posterior fontanelle occurs where the sagittal and lambdoidal sutures meet.

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fon·ta·nelle (fon″tə-nelґ) [Fr., dim. of fontaine spring, filter] fonticulus; see fonticuli cranii.

Medical dictionary. 2011.

Look at other dictionaries:

  • fontanelle — [ fɔ̃tanɛl ] n. f. • 1690; réfect. de l a. fr. fontenelle « petite fontaine », d apr. le lat. méd. fontanella ♦ Espace membraneux compris entre les os du crâne des jeunes enfants, qui ne s ossifie que progressivement au cours de la croissance. ●… …   Encyclopédie Universelle

  • Fontanelle — Sf Lücke im Schädel von Neugeborenen per. Wortschatz fach. (17. Jh.) Entlehnung. Entlehnt aus neo kl. fontanella, entsprechend zu it. fontanella. nfrz. fontenelle. Die romanischen Wörter bedeuten kleine Quelle (Fontäne) und bezeichnen… …   Etymologisches Wörterbuch der deutschen sprache

  • Fontanelle — Fontanelle, IA U.S. city in Iowa Population (2000): 692 Housing Units (2000): 328 Land area (2000): 0.892258 sq. miles (2.310938 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.892258 sq. miles (2.310938 sq.… …   StarDict's U.S. Gazetteer Places

  • Fontanelle, IA — U.S. city in Iowa Population (2000): 692 Housing Units (2000): 328 Land area (2000): 0.892258 sq. miles (2.310938 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.892258 sq. miles (2.310938 sq. km) FIPS code:… …   StarDict's U.S. Gazetteer Places

  • fontanelle — (n.) also fontanel, 1540s, hollow between two muscles, from Fr. fontanelle (16c.), from O.Fr. fontenele small source, fountain, spring; fontanelle, dim. of fontaine spring (see FOUNTAIN (Cf. fountain)), on analogy of the dent in the earth where a …   Etymology dictionary

  • Fontanelle — (Беттона,Италия) Категория отеля: Адрес: 06084 Беттона, Италия Описани …   Каталог отелей

  • Fontanelle I — (Беттона,Италия) Категория отеля: Адрес: 06084 Беттона, Италия Описа …   Каталог отелей

  • Fontanelle — Fon ta nelle , n. [F.] (Anat.) Same as {Fontanel}, 2. [1913 Webster] …   The Collaborative International Dictionary of English

  • Fontanelle — (spr. Fongtanell), Jean Gaspard Dubois, geb. 1737 in Grenoble u. st. 1812; er schr. außer mehreren Trauerspielen u. Romanen (Effets des passions, Par. 1767, 2 Bde.; Contes philosph. et moraux, Bouillon 1770, 2 Bde., u.a.m.): Cours de belles… …   Pierer's Universal-Lexikon

  • Fontanelle — (neulat., auch das Fontanell), die nicht von Knochen, sondern nur von einer festen Ha ut verschlossenen Stellen am Schädel des neugebornen Kindes. Oben auf dem Scheitel liegt die große F., weiter nach hinten die kleine, an jeder Seite des Kopfes… …   Meyers Großes Konversations-Lexikon

  • Fontanelle — Fontanelle, die noch nicht mit Knochensubstanz erfüllten, bloß von einer fibrösen Haut gebildeten Stellen des Schädelgewölbes der Neugeborenen; 1) die große, dreieckige, vordere F. zwischen dem Stirnbein und beiden Seitenwandbeinen; 2) die kleine …   Herders Conversations-Lexikon

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