Os parietale
Parietal bone
• Parietal bone (Gray's illustrations) - Ganzer Fall bei Radiopaedia
Cranial vault
• Skull and facial bones (illustrations) - Ganzer Fall bei Radiopaedia
The parietal bone is a paired, irregular, quadrilateral skull bone that forms the sides and roof of the cranium.
Gross anatomy
The parietal bone has four borders, four angles, and external/internal surfaces.
Borders include: frontal, sagittal, occipital (half of lambdoid suture), and squamous temporal.
Angles include: sphenoid, mastoid, occipital, and frontal.
The external surface is convex and smooth. It features:
- parietal eminence
- superior temporal line for attachment of temporalis fascia
- inferior temporal lines for attachment of temporalis muscle
- parietal foramen contains an emissary vein to superior sagittal sinus
The internal surface is concave and features:
- groove for middle meningeal vessels
- groove above: forms sagittal sulcus
Articulations
The parietal bone articulates with five other bones: the frontal, sphenoid, temporal, occipital, and contralateral parietal bone.
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Os parietale: