Author: Alexandra Sieroslawska MD•Reviewer: Dimitrios Mytilinaios MD, PhDLast reviewed: September 30, 2021Reading time: 5 minutes
The cranial sutures are fibrous joints connecting the bones of the skull. To the undiscovering individual these shpermit grooves may look choose fractures. In reality the intricate windy lines of these thin lines note the adherence between the bones and the growth and clocertain of the cranial fontanelles.
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The thick fibrous tissue that connects the sutures is made largely out of collagen. These joints are fixed, immovable, and also they have no cavity. They are also referred to as the synarthroses. In fetal skull the sutures are wide and allow slight movement during birth, however later they come to be rigid and also addressed just choose in the adults.
|Anterior aspect of skull||Frontonasal suture - between the frontal bone and nasal bonesFrontozygomatic suture - between the frontal bone and also zygomatic boneZygomaticomaxillary suture - in between zygoma and also the maxillaIntermaxillary suture - between 2 maxillaMetopic suture - found in children; on the midline of the frontal bone|
|Posterior aspect of skull||Sagittal suture - in between two parietal bonesLambdoid suture - in between the parietal bone and also occipital boneLambda - convergence of the sagital and also lambdoid suture (resembles to a greek letter "lambda")|
|Superior aspect of skull||Coronal suture - between the frontal bone and the parietal boneBregma - convergence of the saggital and coronal sutures|
|Lateral aspect of skull||Squamous suture - in between the parietal bone and also temporal boneSphenofrontal suture - in between the frontal bone and sphenoid boneSphenoparietal suture - in between the sphenoid bone and also parietal boneOccipitomastoid suture - in between the occipital bone and also mastoid procedure of the temporal boneTemporozygomatic suture - between the temporal bone and zygomatic bone|
|Inferior aspect of skull||Average palatine suture - in between the hotizontal plates of the palatinesTransverse palatine suture - in between the palatine procedure of the maxillary bone and also the palatine bonePetro-occipital suture - between the occipital bone and also petrous component of the tempdental boneSpheno-occipital suture - between the sphenoid bone and also occipital bonePetrosquamous suture - between the petrous and squamous components of the temporal bonePetrotympanic suture - in between the temporomandibular joint and the tympanic cavity|
The sutures discovered in the skull are described in the adhering to write-up.
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The 2 maxillary bones are anteriorly associated by the intermaxillary joint. The width of this joint is considerably boosted throughout a maxillary expansion treatment.The metopic suture is a persistent childhood suture that runs dvery own the midline of the frontal bone.
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Posterior viewThe sagittal suture joins the two parietals.The sagittal and also lambdoid sutures converge into a lambda.
Superior viewThe coronal suture separates the frontal bone and also the parietal bone.The coronal and the sagittal sutures converge into the bregma.The sagittal and also lambdoid sutures are likewise visible from this angle.
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The squamous suture joins the parietal bone and also the temporal bone.The sphenoparietal suture articulates the sphenoid bone and also the parietal bone.The coronal, lambdoid and frontozygomatic sutures are likewise visible from this angle.
Learn more about the cranial sutures here: