Heart sounds of a 16 year old girl immediately after running, with a heart rate of 186 BPM. The S1 heart sound is intensified due to the increased cardiac output.
Emily’s heartbeat
Normal heart sounds of a 16 year old female at rest, as heard with a stethoscope.
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Front of thorax, showing surface relations of bones, lungs (purple), pleura (blue), and heart (red outline). The locations of best auscultation for each heart valve are labeled with "M", "T", "A", and "P".
First heart sound: caused by atrioventricular valves – Mitral (M) and Tricuspid (T).
Second heart sound caused by semilunar valves – Aortic (A) and Pulmonary/Pulmonic (P).
Heart sounds are the noises generated by the beating heart and the resultant flow of blood through it. Specifically, the sounds reflect the turbulence created when the heart valves snap shut. In cardiac auscultation, an examiner may use a stethoscope to listen for these unique and distinct sounds that provide important auditory data regarding the condition of the heart.
In healthy adults, there are two normal heart sounds, often described as a lub and a dub that occur in sequence with each heartbeat. These are the first heart sound (S1) and second heart sound (S2),
produced by the closing of the atrioventricular valves and semilunar valves, respectively. In addition to these normal sounds, a variety of other sounds may be present including heart murmurs, adventitious sounds, and gallop rhythms S3 and S4.
Heart murmurs are generated by turbulent flow of blood and a murmur to be heard as turbulent flow must require pressure difference of at least 30 mm of Hg between the chambers and the pressure dominant chamber will outflow the blood to non-dominant chamber in diseased condition which leads to Left-to-right shunt or Right-to-left shunt based on the pressure dominance. Turbulence may occur inside or outside the heart; if it occurs outside the heart then the turbulence is called bruit or vascular murmur. Murmurs may be physiological (benign) or pathological (abnormal). Abnormal murmurs can be caused by stenosis restricting the opening of a heart valve, resulting in turbulence as blood flows through it. Abnormal murmurs may also occur with valvular insufficiency (regurgitation), which allows backflow of blood when the incompetent valve closes with only partial effectiveness. Different murmurs are audible in different parts of the cardiac cycle, depending on the cause of the murmur.
Emily's racing heartbeat Heartsounds of a 16 year old girl immediately after running, with a heart rate of 186 BPM. The S1 heartsound is intensified due to...
heartsound or S3 is a rare extra heartsound that occurs soon after the normal two "lub-dub" heartsounds (S1 and S2). S3 is associated with heart failure...
help. Typically, healthy hearts have only two audible heartsounds, called S1 and S2. The first heartsound S1, is the sound created by the closing of...
The fourth heartsound or S4 is an extra heartsound that occurs during late diastole, immediately before the normal two "lub-dub" heartsounds (S1 and S2)...
The Sound of Your Heart (Korean: 마음의 소리; also known as The Sound of Your heart, Sound of Heart) is a South Korean webtoon series written and illustrated...
creates a sound loud enough to hear with a stethoscope. The sound differs from normal heartsounds by their characteristics. For example, heart murmurs...
heart on auscultation. It includes three or four sounds, thus resembling the sounds of a gallop. The normal heart rhythm contains two audible heart sounds...
Korotkoff sounds are the sounds that medical personnel listen for when they are taking blood pressure using a non-invasive procedure. They are named after...
Pediatric HeartSounds 2nd edition (2003) by Steven Lehrer is a book and audio CD that guides the student through the skills of pediatric heart auscultation...
heart sounds Normal heartsounds as heard with a stethoscope Problems playing this file? See media help. Emily's racing heartbeat Heartsounds of a 16...
Emma's irregular heartbeat Heartsounds of a girl experiencing arrhythmia after exercising. Problems playing this file? See media help. Arrhythmias, also...
systems (heart and breath sounds), as well as the alimentary canal. The term was introduced by René Laennec. The act of listening to body sounds for diagnostic...
Emily’s heartbeat Sound of the heart valves closing in a healthy 16 year old girl. The stethoscope is at the tricuspid area. Problems playing this file...
contraction and relaxation, all the heart valves are closed; at no time are all the heart valves open. *S3 and S4 heartsounds are associated with pathologies...
Prolapse murmur Heartsounds of a 16-year-old girl diagnosed with mitral valve prolapse and mitral regurgitation. Auscultating her heart, a systolic murmur...
Doppler effect to provide an audible simulation of the heart beat. Some models also display the heart rate in beats per minute (BPM). Use of this monitor...
machine used to perform the monitoring is called a cardiotocograph. Fetal heartsounds were described as early as 350 years ago and approximately 200 years...
No Sound But a Heart is the eighth studio album by Scottish singer Sheena Easton, released in 1987 on the EMI America label. The album was issued in the...
Sound of Your Heart may refer to: The Sound of Your Heart (webcomic) The Sound of Your Heart (TV series) "Sound of Your Heart", by Shawn Hook "The Sound...
Emma's irregular heartbeat Heartsounds of a 15 year old girl experiencing premature heart beats. Recorded during recovery after running, with the stethoscope...
distant heartsounds and tachypnea. A physical finding specific to pericardial effusion is dullness to percussion, bronchial breath sounds and egophony...
recording of all the sounds made by the heart during a cardiac cycle. Heartsounds result from vibrations created by the closure of the heart valves. There are...
the heart has numerous anatomical features (e.g., atria, ventricles, heart valves) and numerous physiological features (e.g., systole, heartsounds, afterload)...
rod shaped chestpieces, are used to listen to internal sounds made by machines (for example, sounds and vibrations emitted by worn ball bearings), such as...
at mitral area Heartsounds of a 16-year-old girl diagnosed with mitral valve prolapse and mitral regurgitation. Auscultating her heart, a systolic murmur...
origin of other, so-called adventitial sounds or heart clicks has been appreciated. These are short, high-pitched sounds.[citation needed] The mitral valve...
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