The frontal suture is a fibrous joint that divides the two halves of the frontal bone of the skull in infants and children. Typically, it completely fuses between three and nine months of age, with the two halves of the frontal bone being fused together. It is also called the metopic suture,[1][2] although this term may also refer specifically to a persistent frontal suture.[3]
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.
Its presence in a fetal skull, along with other cranial sutures and fontanelles, provides a malleability to the skull that can facilitate movement of the head through the cervical canal and vagina during delivery. The dense connective tissue found between the frontal bones is replaced with bone tissue as the child grows older.
^Herz JM, Kolb S, Erlinger T (2001). "A common binding site for channel-permeant cations and local anesthetics on the nicotinic acetylcholine receptor". Annals of the New York Academy of Sciences. 625 (1): 645–648. doi:10.1111/j.1749-6632.1991.tb33898.x. PMID 1711818. S2CID 29447310.
^Podda S (18 August 2010). "Congenital Synostoses". Medscape.
^"Metopic suture". The American Heritage, Stedman's Medical Dictionary. 2002.
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Zygomaticofrontal sutureFrontalsuture / Metopic suture – between the two frontal bones, prior to the fusion of the two into a single bone Sagittal suture – along...
coronal suture is a dense, fibrous connective tissue joint that separates the two parietal bones from the frontal bone of the skull. The coronal suture lies...
most vertebrates, the frontal bone is paired, rather than presenting the single, fused structure found in humans (see frontalsuture). It typically lies...
asterion on each side. The lambdoid suture may be supplied by a branch of the supraorbital nerve, a branch of the frontal branch of the trigeminal nerve....
is the condition of having a persistent metopic suture, or persistence of the frontal metopic suture in the adult human skull. Metopism is the opposite...
fontanelle, frontal fontanelle) is the largest fontanelle, and is placed at the junction of the sagittal suture, coronal suture, and frontalsuture; it is...
of the facial sutures do not cut the lateral or frontal border on its own, but coincide in front of the glabella, and cut the frontal border at the midline...
The sagittal suture, also known as the interparietal suture and the sutura interparietalis,[citation needed] is a dense, fibrous connective tissue joint...
pieces within the suture known as Wormian bones or sutural bones. Most commonly these are found in the course of the lambdoid suture. The human skull is...
The frontoethmoidal suture is the suture between the ethmoid bone and the frontal bone. It is located in the anterior cranial fossa. This article incorporates...
lower part of the middle line, the remains of the frontalsuture; in infancy this suture divides the frontal bone into two and later fuses. A condition where...
the supraorbital margin on each side of the frontalsuture. They are the site of ossification of the frontal bone during embryological development, although...
thereafter only by the ptilinal suture or frontalsuture (which defines the aperture through which it everts). Bugguide.net. ptilinum, ptilinal suture v t e...
The sphenofrontal suture is the cranial suture between the sphenoid bone and the frontal bone. The skull from the side. The skull from the front. Base...
The zygomaticotemporal suture (or temporozygomatic suture) is the cranial suture between the zygomatic bone and the temporal bone. This is part of the...
to the maxillary-frontalsuture, a character shared with Vulpes (fox genus). Speothos and Atelocynus also possess very small frontal sinuses that are...
ISBN 0-07-303869-5. In small children, the frontal bone is still separated into two parts, by the frontalsuture, which normally closes during postnatal...
The sphenozygomatic suture is the cranial suture between the sphenoid bone and the zygomatic bone. Position of two bones, Animation. Sphenoid bone Zygomatic...
The occipitomastoid suture or occipitotemporal suture is the cranial suture between the occipital bone and the mastoid portion of the temporal bone. It...
suture, or squamous suture, arches backward from the pterion and connects the temporal squama with the lower border of the parietal bone: this suture...
The sphenoethmoidal suture is the cranial suture between the sphenoid bone and the ethmoid bone. It is located in the anterior cranial fossa. This article...
articulates with the frontal bone, forming half of the coronal suture. The point where the coronal suture intersects with the sagittal suture forms a T-shape...
while still executing smooth and precise movements. Other joints such as sutures between the bones of the skull permit very little movement (only during...
adult humans), and potential signs of oxycephaly. Considering that the frontalsuture of the skull is very open and the hands and feet not fully ossified...
The sphenosquamosal suture is a cranial suture between the sphenoid bone and the squama of the temporal bone. Left zygomatic bone in situ Base of the skull...
zygomaticofrontal suture (or frontozygomatic suture) is the cranial suture between the zygomatic bone and the frontal bone. The suture can be palpated just...
lines, while lepidopterous caterpillars bear an inverted "Y" or "V" (frontalsuture). In 2019, a geometrid moth caterpillar dating back to the Eocene epoch...
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