The =sternum= consists of six segments and resembles that of the ox in
general form. The first segment (Manubrium) is long, flattened
laterally, and bears a blunt-pointed cartilage on its anterior end; its
posterior end forms a diarthrodial joint with the body. The latter is
flattened, wide in its middle, narrow at either end. The widest segments
are formed of two lateral parts, which are not completely fused in the
adult. The last segment has a long narrow part which bears the xiphoid
cartilage.
The =thorax= is long and is more barrel-shaped than in the horse or ox,
since the ribs are more strongly curved and differ less in relative
length.
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