Question

The first heart sound occurs due to
(a) Closure of tricuspid valve
(b) Opening of semilunar valve
(c) Closure of bicuspid valve
(d) Closure of semilunar valves.
Choose the correct option.
(a) and (c)
(b) and (c)
O (b) only
o(a) and (d)

Answer 1

Answer:

I think c is right answar

Answer 2

Answer:

I think option c is the correct answer