katieschaffer11 katieschaffer11

17-06-2021
Health

contestada

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.

Respuesta :

17-06-2021

Answer:

yes

Explanation:

first is by the atrioventricular valve and the second is by the semi-lunar valve

Answer Link

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