Assertion: valve's leaflet | /r/HasProperty | semicircular
Facets:
value: in borders
type: LOCATION
value: in shape
type: OTHER
Source sentences:
text: Introduced in 1979, bileaflet valves are made of two semicircular leaflets that revolve around struts attached to the valve housing.
text: The posterior leaflet, although smaller, covering only one third of the mitral orifice, is semicircular in shape and borders most of the annulus from one commissure to the other.6 Figure 5-5 shows the mitral valve leaflets and related cardiac structures as seen from the left atrium (the surgeon’s view) and the left ventricle.