ICSE Class X Biology 2023 Solved Papers
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Select the correct answers to the questions from the given options.
SECTION - I
Select the correct answers to the questions from the given options.
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Question : 3
Total: 74
The heart sound 'Dup' is produced when:
Solution:
(c) Semilunar valves close
Explanation: The 'DUP' sound is produced when at the begining of venticular diastole, the semilunar valves at the roots of aorta and pulmonary artery get closed.
Explanation: The 'DUP' sound is produced when at the begining of venticular diastole, the semilunar valves at the roots of aorta and pulmonary artery get closed.
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