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

The borders of the vertex bones [ossa parietalia].

The vertex bones (I in fig. 3, K in fig. 4; in both the bone is circumscribed by B, D; A, B; C, D; C, G, F, H, A) have in their upper portion a suture [sutura sagittalis] peculiar to them, which runs in a straight course along the length of the head and divides them from each other. In front they are distinguished from others by the coronal suture, behind by the lambdoid. In the lower portions they are bounded by the squamous agglutinations [sutura squamosa]: whence it happens that they appear four-sided and uniform throughout, except where they are thinned like scales and go beneath the temporal bones. Here they are quite thin but solid and not at all porous, while on the remainder of their surface (above R, R in figs. 3, 4), where they are not covered by temporal muscles, they appear porous [foramen parietale] and full of cavities [canales diploïci] between their scales, having almost the same thickness throughout this area. Then, where they meet the frontal bone, they look thinner than they are next the occiput. I will run through whatever hollows or foramina they have in the twelfth chapter, which will be dedicated to them.



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