Plz help me on this question and nooo links pls
true or false
The first heart sound (S1) is...
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Health, 17.06.2021 06:20 lizzyhearts
Plz help me on this question and nooo links pls
true or false
The first heart sound (S1) is caused by closure of the AV valves and the second heart sound (S2) is caused by closure of the SL valves.
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