The first heart sound is produced when
a)
Diastole begins
b)
Semilunar valve close quickly
c)
Interventricular pressure decreases
d)
Bicuspid and tricuspid valve close quickly
The first heart sound is produced when
a)
Diastole begins
b)
Semilunar valve close quickly
c)
Interventricular pressure decreases
d)
Bicuspid and tricuspid valve close quickly
Question ID - 3631 | SaraNextGen Top Answer
The first heart sound is produced when
a)
Diastole begins
b)
Semilunar valve close quickly
c)
Interventricular pressure decreases
d)
Bicuspid and tricuspid valve close quickly
|
The first heart sound is produced when |
|||
|
a) |
Diastole begins |
b) |
Semilunar valve close quickly |
|
c) |
Interventricular pressure decreases |
d) |
Bicuspid and tricuspid valve close quickly |
1 Answer
127 votes
Answer Key / Explanation : (d) -
(d)
During working of heart, two sounds are produced lubb and dup. First sound (
lubb) is produced, when auriculoventricular (tricuspid and bicuspid) valves are closed or at the end of diastole. The second sound (
dup) is produced when semilunar valves at the base of dorsal aorta are closed or at the end of systole.
127 votes
Answer Link
127