Sutures
Sutures •
Cranial sutures - normal - Ganzer Fall bei Radiopaedia
Sagittal
section of skull. This is a drawing of the head of a newborn baby as seen from above, showing the fontanelles and sutures. Originally the picture has been published in 1918 and therefore lapsed into the public domain. The original terms have been deleted and German and Latin terms have been added.
The adult
skull is normally made up of 22 bones. Except for the mandible, all of the bones of the skull are joined together by sutures, semi-rigid articulations formed by bony ossification, the presence of Sharpey"s fibres permitting a little flexibility
There are many sutures of the skull, which are where skull bones meet. In general, sutures don't fuse until brain growth is complete, therefore allowing the skull to increase in size with the developing brain.
Gross anatomy
Sutures are fibrous joints with the periosteum externally and outer layer of dura mater being continuous over and under them. They typically appear wavy for added strength.
Named sutures divided by their general location include:
- calvarial
- coronal suture
- sagittal suture
- lambdoid suture (occipitomastoid suture)
- metopic suture
- squamosal suture
- sphenosquamosal suture
- facial
- frontozygomatic suture
- frontomaxillary suture
- frontolacrimal suture
- temporozygomatic suture
- zygomaticomaxillary suture
- parietotemporal suture (parietomastoid suture)
- occipitotemporal suture (occipitomastoid suture)
- sphenofrontal suture
- sphenozygomatic suture
- lacrimomaxillary suture
- nasomaxillary suture
- basal / internal
- frontoethmoidal suture
- petrosquamous suture
- petroclival suture
- sphenoethmoidal suture
- sphenopetrosal suture
Specific names are given to where sutures meet, see: skull landmarks
Related pathology
Siehe auch:
- Kraniosynostose
- akzessorische Suturen des Schädels
- Fontanelle
- Sutura sagittalis
- Sutura lambdoidea
- Sutura coronalis
- persistierende Sutura frontalis mediana
und weiter:
Assoziationen und Differentialdiagnosen zu Suturen:
