| Sphenofrontal suture | |
|---|---|
 Sphenofrontal suture (shown in red). | |
 Side view of the skull. (Sphenofrontal suture visible at center, between sphenoid bone, which is colored yellow in the diagram, and the frontal bone, which is colored in gray, and is at the upper left.). | |
| Details | |
| Identifiers | |
| Latin | sutura sphenofrontalis |
| TA98 | A03.1.02.006 |
| TA2 | 1580 |
| FMA | 52938 |
| Anatomical terminology | |
The sphenofrontal suture is the cranial suture between the sphenoid bone and the frontal bone.
The lambdoid suture is a dense, fibrous connective tissue joint on the posterior aspect of the skull that connects the parietal bones with the occipital bone. It is continuous with the occipitomastoid suture.
The coronal suture is a dense, fibrous connective tissue joint that separates the two parietal bones from the frontal bone of the skull.
The hypoglossal canal is a foramen in the occipital bone of the skull. It is hidden medially and superiorly to each occipital condyle. It transmits the hypoglossal nerve.
The inferior orbital fissure is a gap between the greater wing of sphenoid bone, and the maxilla. It connects the orbit (anteriorly) with the infratemporal fossa and pterygopalatine fossa (posteriorly).
The frontal crest of the frontal bone ends below in a small notch which is converted into a foramen, the foramen cecum, by articulation with the ethmoid.
The frontoethmoidal suture is the suture between the ethmoid bone and the frontal bone.
The squamosal suture, or squamous suture, arches backward from the pterion and connects the temporal squama with the lower border of the parietal bone: this suture is continuous behind with the short, nearly horizontal parietomastoid suture, which unites the mastoid process of the temporal with the region of the mastoid angle of the parietal bone. The term parietotemporal suture may refer to both of these sutures or exclusively to the parietomastoid suture and its use is, therefore, best avoided.
The sphenozygomatic suture is the cranial suture between the sphenoid bone and the zygomatic bone.
The zygomaticofrontal suture is the cranial suture between the zygomatic bone and the frontal bone. The suture can be palpated just lateral to the eye.
The zygomaticotemporal suture is the cranial suture between the zygomatic bone and the temporal bone. This is part of the zygomatic arch. Movement at the suture decreases with development during aging. It has a complex internal structure.
The occipitomastoid suture or occipitotemporal suture is the cranial suture between the occipital bone and the mastoid portion of the temporal bone.
The sphenosquamosal suture is a cranial suture between the sphenoid bone and the squama of the temporal bone.
The mastoid foramen is a hole in the posterior border of the temporal bone. It transmits an emissary vein between the sigmoid sinus and the suboccipital venous plexus, and a small branch of the occipital artery, the posterior meningeal artery to the dura mater.
The dorsum sellae is part of the sphenoid bone in the skull. Together with the basilar part of the occipital bone it forms the clivus.
Along the internal surface of the occipital bone, at the point of intersection of the four divisions of the cruciform eminence, is the internal occipital protuberance. Running transversely on either side is a groove for the transverse sinus.
In the occipital bone, the lower division of the cruciate eminence is prominent, and is named the internal occipital crest; it bifurcates near the foramen magnum and gives attachment to the falx cerebelli; in the attached margin of this falx is the occipital sinus, which is sometimes duplicated.
The anterior nasal spine, or anterior nasal spine of maxilla, is a bony projection in the skull that serves as a cephalometric landmark. The anterior nasal spine is the projection formed by the fusion of the two maxillary bones at the intermaxillary suture. It is placed at the level of the nostrils, at the uppermost part of the philtrum. It rarely fractures.
The parietal eminence is a convex, smooth eminence on the external surface of the parietal bone of the skull. It is the site where intramembranous ossification of the parietal bone begins during embryological development. It tends to be slightly more prominent in men than in women, so may be used to help to identify the sex of a skull.
The sphenoidal spine is a downwardly directed process at the apex of the great wings of the sphenoid bone that serves as the origin of the sphenomandibular ligament.
The groove for transverse sinus is a groove which runs along the internal surface of the occipital bone, running laterally between the superior and inferior fossae of the cruciform eminence. The transverse sinuses travel along this groove.
This article incorporates text in the public domain from page 182 of the 20th edition of Gray's Anatomy (1918)
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