Frontal suture

Frontal suture
Bone: Frontal suture
Frontal suture.png
Skull at birth, seen from above
Gray134.png
Frontal bone. Outer surface. ("Remains of frontal suture" identified at center.)
Latin sutura frontalis
Gray's subject #46 178

The frontal suture is a dense connective tissue structure that divides the two halves of the frontal bone of the skull in infants and children. It usually disappears by the age of six, with the two halves of the frontal bone being fused together. If the suture is not present at birth because both frontal bones have fused (craniosynostosis), it will cause a keel-shaped deformity of the skull called "trigonocephaly."

It is present in a fetal skull so that the skull can bend and is very elastic at the time of birth. The baby's head bends when coming out of the mother's womb. The space is filled as the child grows older.

Persistent Metopic Suture

In some individuals the suture can persist (totally or partly) into adulthood, it is referred to as a metopic suture (or a persistent metopic suture). The suture can either bisect the frontal bone and run from nasion to bregma or persist as a partial metopic suture(see image of frontal bone)[1] (where part of the suture survives and is connected to either bregma or nasion) or as an isolated metopic fissure. Metopic sutures are of no clinical significance, although they can be mistaken for cranial fractures.[2] As metopic sutures are visible in radiographs they can be useful for the forensic identification of human skeletal remains; metopic sutures should not be confused with supranasal sutures (a small zig-zag shaped suture located at and/or immediately superior to the glabella).

See also

References

  1. ^ Bademci G, Kendi T and Agalar F. 2007. "Persistent metopic suture can mimic the skull fractures in the emergency setting?" Neurocirugía 18: 238.
  2. ^ Bademci G, Kendi T and Agalar F. 2007. "Persistent metopic suture can mimic the skull fractures in the emergency setting?" Neurocirugía 18: 238-240.

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Look at other dictionaries:

  • frontal suture — noun the suture between two halves of the frontal bone (usually obliterated by the age of 6) • Syn: ↑sutura frontalis • Hypernyms: ↑suture, ↑sutura, ↑fibrous joint • Part Holonyms: ↑cranium, ↑ …   Useful english dictionary

  • frontal suture — (ARTHROPODA: Insecta) 1. One of two sutures arising at the anterior end of the coronal suture which extends ventrad toward the epistomal suture. 2. In Diptera, a suture shaped like an inverted U , having the base crossing the face above the bases …   Dictionary of invertebrate zoology

  • frontal suture — 1. sutura frontalis. 2. sutura frontalis persistens …   Medical dictionary

  • Suture (joint) — This article is about joints in the bones of the cranium. There is also an article about sutures as features of a wide range of animals. Suture also has other meanings in other contexts: Surgical suture, to describe stitches and other techniques… …   Wikipedia

  • Frontal bone — Bone: Frontal bone Frontal bone highlighted in red Latin os frontale Gray s …   Wikipedia

  • Frontal crest — Bone: Frontal crest Frontal bone. Inner surface. (Frontal crest visible at center but not labeled.) Latin crista frontalis Gray s …   Wikipedia

  • Frontal eminence — Infobox Bone Name = Frontal eminence Latin = t. frontale, e. frontalis GraySubject = 33 GrayPage = 135 Caption = Frontal bone. Outer surface. (Frontal eminence is labeled at center right.) Caption2 = System = Precursor = MeshName = MeshNumber =… …   Wikipedia

  • frontal lunule — (ARTHROPODA: Insecta) In Diptera, the lunar shaped sclerite above the base of the antennae and below the frontal suture …   Dictionary of invertebrate zoology

  • Suture osseuse — Suture (articulation) Pour les articles homonymes, voir Suture. Sutures osseuses d un crâne humain. 1. suture coronale 2. suture sagittale 3. suture lambdoïde Une suture (provenant du nom sutura, se traduisant …   Wikipédia en Français

  • frontal — frontal, ale 1. (fron tal, ta l ) adj. 1°   Terme d anatomie. Qui appartient au front. Les muscles frontaux. La région frontale.    Os frontal ou coronal, ou, substantivement, le frontal, os situé à la partie antérieure du crâne et supérieure de… …   Dictionnaire de la Langue Française d'Émile Littré

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