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 22 On the Clavicles

Legend of the three preceding figures and their characters

The first figure of the present chapter represents the clavicle of the right side in its anterior or outer and superior aspect.

The second shows the posterior or interior face of the clavicle of the right side, together with its superior aspect as well.

The third displays the inferior aspect of the clavicle of the same side.

A 1 , 2 , 3 Capitulum [extremitas sternalis] of the clavicle, by which it is articulated to the pectoral bone [sternum].
B 1 First angle [ventralis] of this capitulum.
C 1 , 2 , 3 Second angle [dorsalis] of the capitulum.
D 1 , 2 , 3 Third angle of the capitulum just mentioned. In the first figure, the entire circumference of the triangular capitulum is visible with the letters B, C, and D, 1 just as in the figure placed here above D in the character index for the sake of clarity.

E 1 , 3 In the anterior surface of the clavicle, a protuberant line is marked directly aligned with the first angle, marked B.
F 2 , 3 In the third figure, F and G mark the protuberant line on the lower surface of the clavicle, which F and G in the second figure also show.
G 2 , 3 G separately indicates the roughness [impressio ligamenti costoclavicularis] appearing behind the line marked F.
H 1 , 2 The middle of the longitude of the clavicle [corpus claviculae], which would be smoothly rounded but for the line (F) in its lower part.
I 1 , 2 At this point the clavicle broadens as it goes toward the upper process of the scapula, and it protrudes on its upper surface (which is also marked I to K).
K 1 Roughness visible on the surface of the clavicle where it is most concave in its anterior part. 2
L, M 3 Slightly concave lower region of the wider portion of the clavicle, rough but not convex like the upper part. 3
N 3 Here too the clavicle is rough [sulcus musculi subclavii], as it is next to M; from here a ligament [l. coracoclaviculare] runs to the inner process [p. coracoideus] of the scapula.
O 2 , 3 Area of the clavicle most protuberant backward or inward, and the bulge [tuberculum conoideum] peculiar to this location.
P 3 A particularly rough spot visible in the lower part of the clavicle where it is articulated to the upper process [acromion] of the scapula. 4
Q 1 , 2 , 3 In the third figure Q marks the tubercle [facies articularis acromialis] by which the clavicle is joined to the upper process of the scapula. In the first and second figures, Q marks the location of this tubercle.



This can be made the fourth figure of the present chapter; the part on the right 5 marked R represents the cartilage [discus articularis] peculiar to the joint of the clavicle [articulatio acromioclavicularis] with the acromion. 6 The other part, marked S, is the peculiar cartilage [discus articularis] of the joint [art. sternoclavicularis] of the clavicle with the pectoral bone.



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 22 On the Clavicles