Assertion: trachea's cartilage ring | /r/HasProperty | c-shaped
Facets:
value: d
type: DEGREE
Source sentences:
text: The cartilage rings are C-shaped because the back of the trachea presses against the esophagus.
text: The trachea is a tube-shaped structure consisting of 15-to-20 D-shaped cartilage rings anterolaterally bridged by annular ligaments.