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fontanel
fon·ta·nel also fon·ta·nelle F0231900 (fŏn′tə-nĕl′)n. Any of the soft membranous gaps between the incompletely formed cranial bones of a fetus or an infant. Also called soft spot. [Middle English fontinel, from Old French fontanele, diminutive of fontaine, fountain; see fountain.]fon•ta•nel or fon•ta•nelle (ˌfɒn tnˈɛl) n. any of the spaces, covered by membrane, between the bones of a fetal or young skull. [1375–1425; late Middle English fontinel < Middle French fontanele little spring, fountain] fontanelA soft spot in an infant’s head where skull bones have not yet fused together.ThesaurusNoun | 1. | fontanel - any membranous gap between the bones of the cranium in an infant or fetusfontanelle, soft spotchild's body - the body of a human childorifice, porta, opening - an aperture or hole that opens into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart"braincase, brainpan, cranium - the part of the skull that encloses the brainanterior fontanelle - corresponds to the bregma when bones have ossifiedsphenoid fontanel, sphenoid fontanelle, sphenoidal fontanel, sphenoidal fontanelle - the irregularly shaped area on either side of the cranium where the frontal bone and the anterior tip of the parietal bone and the temporal bone and the greater wing of the sphenoid bone meet; corresponds to the pterion when bones have ossified | Translationsfontanel
fontanel (fŏn`tənĕl'): see skullskull, the skeletal structure of the head, composed of the facial and cranial bones. The skull houses and protects the brain and most of the chief sense organs; i.e., the eyes, ears, nose, and tongue. ..... Click the link for more information. .Fontanel one of the remains of the membranous skeleton that unite the bones of the skull in a newborn infant. The fontanels enable the head of the fetus to be compressed as it passes through the birth canal. The anterior fontanel—the junction of the frontal and temporal bones—closes in the second year of life. The posterior fontanel, which is located at the site where the occipital and temporal bones join, closes before or shortly after birth, as do the mastoid and sphenoidal fontanels. Delayed closing of the fontanels is observed in rickets and a number of other diseases. fontanelle (chiefly US), fontanel Anatomy any of several soft membranous gaps between the bones of the skull in a fetus or infant fontanel
fontanelle [fon″tah-nel´] one of the membrane-covered spaces remaining at the junction of the sutures in the incompletely ossified skull of the fetus or infant. Actually there are two soft spots close together, representing gaps in the bone structure which will be filled in by bone during the normal process of growth. The anterior fontanelle is diamond shaped and lies at the junction of the frontal and parietal bones. This fontanelle usually fills in and closes between the eighth and fifteenth months of life. The posterior fontanelle lies at the junction of the occipital and parietal bones, is triangular in shape, and usually closes by the third or fourth month of life. Though these “soft spots” may appear very vulnerable, they may be touched gently without harm. Care should be exercised that they be protected from strong pressure or direct injury. Fontanelles. From Jarvis, 2000.fontanel also fontanelle (fŏn′tə-nĕl′)n. Any of the soft membranous gaps between the incompletely formed cranial bones of a fetus or an infant. Also called soft spot.fontanel Fontanelle, soft spot Anatomy A membrane-covered region on the skull of a fetus/infant, which corresponds to the convergence of suture lines, where ossification has not yet occurredfontanel, fontanelle (fŏn″tă-nĕl′) [Fr. fontanelle, little fountain] FONTANELS OF INFANT SKULLAny of the tough, fibrous membranes lying between the bones of the cranial vault of a fetus or infant. Fontanels, colloquially known as soft spots, allow an infant's skull to be compressed during passage through the birth canal. The fontanels ossify generally by age two. See: illustrationanterior fontanelThe diamond-shaped junction of the coronal, frontal, and sagittal sutures; it becomes ossified within 18 to 24 months. posterior fontanelThe triangular fontanel at the junction of the sagittal and lambdoid sutures; ossified generally by age one. FontanelOne of the membranous intervals between the uncompleted angles of the parietal and neighboring bones of a fetal or young skull; so called because it exhibits a rhythmical pulsation.Mentioned in: Battered Child Syndrome, Peroxisomal Disordersfontanel
Synonyms for fontanelnoun any membranous gap between the bones of the cranium in an infant or fetusSynonymsRelated Words- child's body
- orifice
- porta
- opening
- braincase
- brainpan
- cranium
- anterior fontanelle
- sphenoid fontanel
- sphenoid fontanelle
- sphenoidal fontanel
- sphenoidal fontanelle
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