The actions responsible for the production of first and second heart sounds. Introduction: The two normal heart sounds are lubb and dupp. Lubb and dupp occur in a sequence with each heartbeat. The first sound is lubb, and it is a low-pitched sound. The second sound is dupp, and it is a high-pitched sound.

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Chapter 20.7, Problem 32AYP

Summary Introduction

To determine:

The actions responsible for the production of first and second heart sounds.

Introduction:

The two normal heart sounds are lubb and dupp. Lubb and dupp occur in a sequence with each heartbeat. The first sound is lubb, and it is a low-pitched sound. The second sound is dupp, and it is a high-pitched sound.

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