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Cardiac Cycle Sounds - First and Second Heart Sounds

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Cardiac Cycle Sounds - First and Second Heart Sounds

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Questions and Answers

Which sound has a duration of about 0.15 s and a frequency of 25–45 Hz?

Second sound

First sound (correct)

Third sound

Fourth sound

What causes the second sound to be loud and sharp?

Low heart rate

Brisk systole

Elevated diastolic pressure in the aorta or pulmonary artery (correct)

Physiologic splitting of the second sound

What is the interval between aortic and pulmonary valve closure during inspiration called?

Third sound

Reduplication of the second sound (correct)

Fourth sound

Physiologic splitting of the second sound

In what condition does splitting of the second sound frequently occur?

<p>Various diseases (D)</p> Signup and view all the answers

When does the third sound occur?

<p>After systole (A)</p> Signup and view all the answers

Cardiac Cycle Sounds - First and Second Heart Sounds

Choose a study mode

Podcast

Questions and Answers

Which sound has a duration of about 0.15 s and a frequency of 25–45 Hz?

What causes the second sound to be loud and sharp?

What is the interval between aortic and pulmonary valve closure during inspiration called?

In what condition does splitting of the second sound frequently occur?

When does the third sound occur?

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