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Updated: Jun 14, 2026

Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery
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Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery

Published on: November 28, 2018

Heart Sounds and Murmurs in 400 Normal Subjects

H N Segall

    Canadian Medical Association Journal
    |March 24, 2010
    PubMed
    Abstract

    No abstract available in PubMed .

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    Heart Sounds01:15

    Heart Sounds

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    S1, also known as the "lub" sound, is caused by the closure of atrioventricular (A-V) valves at the...
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    Cardiovascular System Abnormal Findings II: Auscultation

    Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
    Abnormal Heart Sounds
    Gallops:
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    Assessment of the Cardiovascular System IV: Auscultation

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    Normal Heart Sounds
    S1 (First Heart Sound)-
    S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
    S2 (Second Heart Sound)-
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    Anatomy of the Heart

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    The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
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