4. Sutures:

4.1.1 and 4.1.2 The structure of a suture will be discussed and different kinds of sutures will be demonstrated.

4.2. The sutures of the skull will be portrayed in an overview

4.3. In the following, the overlapping of the sutures is shown. Knowledge of these biomechanic relationships is important for the release of sutural restrictions

            - At the coronal suture, the frontal bone overlaps the parietal bone in the medial part,

            - while the parietal bone overlaps the frontal bone in the lateral part

            - At the spheno-frontal suture the greater wings of the sphenoid overlap the frontal bone

            - At the spheno-squamous suture the temporal bone overlaps the greater wing of the sphenoid in its portrayed vertical part. One can not see how the greater wing of the sphenoid covers the temporal bone in its horizontal part.

The changing point of the overlapping is called spheno-squamous pivot point.

-        At the spheno-parietal suture the parietal bone is covered by the sphenoid bone

-        At the parieto-squamous suture the temporal bone generally covers the parietal bone. In the anterior part it is possible, that the borders switch and that the parietal bone overlaps the temporal bone

-        At the parieto-mastoid suture the temporal bone covers the parietal bone. It is also possible, that the parietal bone is bevelled medially at the anterior end and therefore overlaps the temporal bone.