Assertion: mitral valve | /r/MadeOf | membranous saclike flaps
Facets:
Source sentences:
text: Once blood has left the heart and entered the aorta, its return is prevented by the semilunar valves, which consist of membranous saclike flaps that open away from the heart.
text: …return is prevented by the semilunar valves, which consist of membranous saclike flaps that open away from the heart.
text: Once blood has left the heart and entered the aorta, its return is prevented by the semilunar valves, which consist of membranous saclike flaps that open away from the…