In the Armadillos there are only ten or twelve pairs of ribs, but the sternal portions are very strongly ossified.
The two lateral feet (right and left) are larger and more branched than the two sagittal feet (sternal and caudal foot).
The sternal plates are wider and the limbs of opposite sides further apart than in modern diplopods.
Below this arises the sternal artery, which will be seen later.
The ribs have capitula and tubercula, and sternal ribs often occur.
The small number of sternal ribs is even more characteristic of birds than mammals or reptiles.
The large and heavy crop has caused a unique modification of the sternal apparatus.
In the Pig the precise reverse is seen, the manubrium being narrower than the rest of the sternal bonelets.
The wound on the neck was approximately an inch and a half above the manubrium of the sternum, the sternal notch.
Basilar rod with a posterior and an anterior forked rod (commencing caudal and sternal foot).
sternal ster·nal (stûr'nəl)
Of, relating to, or occurring near the sternum.