The superior view of the skull is commonly referred to as the norma verticalis.
Understanding the Norma Verticalis
The term "norma verticalis" is a Latin anatomical designation that precisely describes the skull when observed from a direct overhead, or superior, perspective. This view is crucial for identifying several key anatomical features of the cranial vault.
Key Anatomical Features in the Superior View
From the norma verticalis, significant landmarks and structures of the skull are visible, particularly the cranial sutures. This aspect of the skull is characterized by the presence of three major sutures that articulate the various bones of the skull.
One of the most prominent sutures seen in this view is the coronal suture. This important fibrous joint is situated between the serrated posterior edge of the frontal bone and the anterior borders of the two parietal bones. From the median plane (the midline of the skull), the coronal suture extends downwards and forwards across the top of the cranial vault, marking a distinct boundary.
Here's a quick overview of what you'd typically observe from this perspective:
- Frontal Bone: The anterior portion of the skull, forming the forehead.
- Parietal Bones: The two large bones that make up a significant portion of the sides and roof of the cranium, situated directly behind the frontal bone.
- Sutures: Immovable fibrous joints that connect the bones of the skull. In the norma verticalis, the coronal suture is clearly visible, and the presence of the sagittal suture (running along the midline between the two parietal bones) and parts of the lambdoid suture (connecting the parietal bones to the occipital bone at the posterior) also contribute to this view.
Table: Key Terms of the Superior Skull View
| Anatomical Term | Description |
|---|---|
| Norma Verticalis | The anatomical term for the superior (top-down) view of the skull. |
| Coronal Suture | A prominent suture visible in this view, connecting the frontal bone with the parietal bones. |
For a more comprehensive understanding of skull anatomy and its various views, you can explore resources on human osteology and neurocranium structures.
