Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 6 On the Eight Bones of the Head and the Sutures Connecting Them

Sutures in unnatural heads

We have now enumerated three sutures that more frequently occur in the naturally shaped head. When a skull is lying on its side, these describe the letter H, or rather h. 65 In the heads that vary from the natural structure, the sutures are as follows. 66 Where the anterior eminence of the head is missing (Chapter 5, figure 2), the coronal suture is absent and the lambdoid remains together with the sagittal, which then runs to the middle of the brows [sutura metopica]. Where the posterior eminence is missing (Chapter 5, figure 3), the lambdoid suture is lost and the coronal remains, while the sagittal is extended through the middle of the occiput to the base of the skull. If you imagine this one resting on its occiput, each of the remaining sutures will resemble the letter T; similarly, the sutures of the first unnatural type will resemble a T 67 when it is rested on its forehead. When the anterior and posterior eminences are both missing (Chapter 5, figure 4), the two sutures that are then seen intersecting each other at right angles make the letter X. One transverse suture [s. coronalis] runs from the area of one ear to that of the other across the middle of the head; another suture extends from the foramen (e in fig. 6) [f. magnum] incised for the dorsal medulla in the occipital bone along the length of the head to the top of the nose, like the one that we commonly call the sagittal suture. Indeed, this suture [s. sagittalis] is always preserved in the first three shapes of head that differ from what is natural. The other two 68 sutures [lambdoidea et coronalis] are missing in various ways according to the shape of the head as a whole. The fifth variant (Chapter 5, figure 5), as it is completely unlike the natural, also contains sutures entirely at odds with it. The transverse or coronal suture and the lambdoid run along the length of the head, while the straight or sagittal suture is carried transversely.



Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 6 On the Eight Bones of the Head and the Sutures Connecting Them