A prosthetic heart valve is provided that includes {TAIL ~ an orifice ring} adapted to carry {HEAD ~ blood} therethrough 
A prosthetic heart valve is provided that includes { TAIL ~ an orifice ring } adapted to carry { HEAD ~ blood } therethrough
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH