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

FIGURE LEGEND

IN THE FIFTH figure we have assigned many of the same letters to the same parts as in figures 3 and 4, as follows:

A : End of the coronal suture, visible in the hollow of the temple.
CC : Lambdoid suture; these letters mark the lower part of the legs of this suture, where this figure no longer shows the exact shape of the suture. The sagittal suture is not shown here. 14
F : The squamous adhesion [sutura squamosa] is not seen in its entirety here; for this reason we have not put in the other characters of the third and fourth figures. It was possible, though, for K to mark here too the same thing it identified in the third and fourth figures. 15
K : The left bone of the vertex [os parietale sinister], a small part of which is seen.
L : The frontal bone [os frontale, processus zygomaticus] a slight portion of which is also visible.
MMM : Here can be seen the greatest part of the occipital bone, which is to say the entire part situated in the base of the skull.
NN : One temporal bone is marked on each side.
OO : The cuneiform bone [ala major ossis sphenoidalis]. 16
PP : Processes [processus pterygoidei] of the cuneiform bone resembling bats’ wings; they are four in number, marked 2 , 3 , 4 , 5 . 17
QG : The first bone of the upper maxilla, which I have also marked G here [os zygomaticum].
SL : The largest or fourth bone of the upper maxilla [maxilla, facies infratemporalis], here also specially marked with a number of L’s.
VX : Jugal bone [arcus zygomaticus]. 18
Y : Suture [sutura zygomaticotemporale] of the jugal bone [os zygomaticum].
aa Section of the suture around the cuneiform bone [os sphenoidale], between it and the temporal bone.
b Section of the suture around the cuneiform bone, between it and the frontal bone [sutura sphenofrontalis].
d At this point the section of the suture around the cuneiform bone [sutura sphenozygomatica], between it and the bone constituting the outer angle of the eye socket, marked Q, is hidden.
e Part of the suture [sutura sphenomaxillaris] around the cuneiform bone, between it and the fourth bone of the upper maxilla. 19
f This suture [sutura zygomaticomaxillaris] is considered peculiar to the upper maxilla, and therefore need not be explained here.
g Suture [sutura frontozygomatica] common to the frontal bone and the upper maxilla [os zygomaticum].
h Socket [fossa mandibularis] into which the head [processus condylaris mandibulae] of the lower maxilla [mandibula] is articulated.
i Process not unlike a writing stylus [processus styloideus].
k Mammillary process [processus mastoideus].
l l Heads [condylus occipitalis] of the occipital bone, which are joined to the first cervical vertebra [atlas].
m m m These letters, which like those that follow belong to the fifth figure only, mark additions 20 [sutura petro-occipitalis] to the lambdoid suture [m. sinister] which descend anteriorally through the base of the skull and go back upon each other at n.
n n Line [synchondrosis spheno-occipitalis] joining the additions [mm] just mentioned, common to the cuneiform bone [os sphenoidale] and the occipital bone.
o p Suture moving to the right side of the skull from the line marked n, between the cuneiform and the left 21 occipital bone [synchondrosis spheno-occipitalis]; n to o is not, however, properly a suture, nor by the same token is the anterior m to n, but a crack (synchondrosis) with a notable distance from bone from bone, distinct from what occurs in other sutures or harmoniae [suturae planae].
q q Section of the suture 22 around the cuneiform bone [os sphenoidale], common to it and the sixth bones of the upper maxilla marked P [lamina horizontalis ossis palatini]. To follow the line of sutures surrounding the cuneiform bone [os sphenoidale], examine this fifth figure together with the third and fourth with attention to the characters of each figure. Follow them from n to o, and thence to p, a, H, b, d, e, and q, and imagine that the cuneiform bone [os sphenoidale] is delimited by sutures in this way on each side 23 —but not without holding up a human skull for inspection in such a way that it can be easily turned in every direction. Since these three tables must be consulted simultaneously, to make it easier to follow the outline of the bone at least on the outside of the skull I have drawn here the lambdoid suture [CDC, sutura lambdoidea] and its additions [sutura occipitomastoidea], and the line (n) [synchondrosis spheno-occipitalis] between the occipital and the cuneiform bone [os sphenoidale] with the suture surrounding the latter, adding the same letters as in the third, fourth, and fifth figures.

r In this figure and in the fourth is marked the line [fissura petrotympanica] of the temporal bone, where the bone containing the beginning of the auditory meatus [meatus acousticus externus] is carved as by a suture, holding it and as it were separating it from the bone.
s 24 Roughness and process [apex partis petrosae] of the temporal bone where it faces back toward the transverse line, marked n, common to the cuneiform and the occipital bone.
S [facing backwards] Process of the eighth bone 25 of the head, or septum dividing the space of the nostrils. The other letters pertain separately to the bones [processus palatinus maxillae] [lamina horizontalis ossis palatinae] of the upper maxilla.



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