STANDARDZoology-Human Physiology
STANDARD Zoology Cardiovascular System MCQ Question
Type: MCQ-conceptual-Medium
The typical Lub-Dup sounds heard in the heart beat of a healthy person are due to
A
Closing of the tricuspid and bicuspid valve
B
Blood flow through the aorta
C
Closing of the tricuspid and semilunar valves
D
Closing of the semilunar valves
Correct Answer
Option C
Detailed Explanation
Lub sound is produced due to closure of bicuspid and tricuspid valve during ventricular systole and dub sound is produced due to closure of semilunar valves during ventricular diastole.
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