1.

Assertion [A]: Both the semilunar valves are thicker than the atrioventricular valves. Reason [R]:These valves are subjected to greater pressure and have to be stronger than the AV valves.

Answer»

Assertion [A]: Both the semilunar valves are thicker than the atrioventricular valves.

Reason [R]:These valves are subjected to greater pressure and have to be stronger than the AV valves.




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