Assertion: trapezium's surface | /r/HasProperty | curved
Facets:
value: sinuously
type: MANNER
value: slightly
type: DEGREE
value: at a plane joint
type: LOCATION
Source sentences:
text: The superior surface, directed lateralward, is concave, sinuously curved, and smooth for articulation with the hamate.
text: At a plane joint (gliding joint), the articulating surfaces of the bones are flat or slightly curved and of approximately the same size, which allows the bones to slide against each other (see Figure 3d).
text: The inferior surface, directed lateralward, is concave, sinuously curved, and smooth for articulation with the hamate.