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Heart sounds

Index Heart sounds

Heart sounds are the noises generated by the beating heart and the resultant flow of blood through it. [1]

57 relations: Aorta, Aortic stenosis, Aortic valve, Atrial fibrillation, Atrial septal defect, Auscultation, Bruit, Cardiac cycle, Cardiac examination, Cardiac shunt, Chordae tendineae, Diastole, Echocardiography, Exhalation, Fourth heart sound, Functional murmur, Gallop rhythm, Heart, Heart click, Heart failure, Heart murmur, Heart valve, Hypertrophic cardiomyopathy, Iambic pentameter, Inflammation, Inhalation, Intercostal space, Laptop, Left bundle branch block, Mitral valve, MP3, Ogg, Onomatopoeia, Pericardial friction rub, Pericarditis, Pericardium, Physical examination, Pulmonary artery, Pulmonary valve, Pulmonic stenosis, Pulse, Regurgitation (circulation), Respiratory sounds, Right bundle branch block, Right-to-left shunt, Sound, Split S2, Stenosis, Stethoscope, Surface anatomy, ..., Systole, Third heart sound, Tinnitus, Tricuspid valve, University of California, Los Angeles, Valsalva maneuver, Ventricle (heart). Expand index (7 more) »


The aorta is the main artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, where it splits into two smaller arteries (the common iliac arteries).

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Aortic stenosis

Aortic stenosis (AS or AoS) is the narrowing of the exit of the left ventricle of the heart (where the aorta begins), such that problems result.

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Aortic valve

The aortic valve is a valve in the human heart between the left ventricle and the aorta.

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Atrial fibrillation

Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating of the atria.

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Atrial septal defect

Atrial septal defect (ASD) is a heart defect in which blood flows between the atria (upper chambers) of the heart.

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Auscultation (based on the Latin verb auscultare "to listen") is listening to the internal sounds of the body, usually using a stethoscope.

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Bruit (from French, "noise"), or vascular murmur, is the abnormal sound generated by turbulent flow of blood in an artery due to either an area of partial obstruction; or a localized high rate of blood flow through an unobstructed artery.

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Cardiac cycle

The cardiac cycle is the performance of the human heart from the beginning of one heartbeat to the beginning of the next.

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Cardiac examination

In medicine, the cardiac examination, also precordial exam, is performed as part of a physical examination, or when a patient presents with chest pain suggestive of a cardiovascular pathology.

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Cardiac shunt

A cardiac shunt is a pattern of blood flow in the heart that deviates from the normal circuit of the circulatory system.

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Chordae tendineae

The chordae tendineae (tendinous chords), colloquially known as the heart strings, are tendon-resembling fibrous cord connective tissue that connect the papillary muscles to the tricuspid valve and the bicuspid valve in the heart.

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Diastole is the part of the cardiac cycle during which the heart refills with blood after the emptying done during systole (contraction).

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An echocardiogram, often referred to as a cardiac echo or simply an echo, is a sonogram of the heart.

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Exhalation (or expiration) is the flow of the breath out of an organism.

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Fourth heart sound

The fourth heart sound or S4 is an extra heart sound that occurs during late diastole, immediately before the normal two "lub-dub" heart sounds (S1 and S2).

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Functional murmur

A functional murmur (innocent murmur, physiologic murmur) is a heart murmur that is primarily due to physiologic conditions outside the heart, as opposed to structural defects in the heart itself.

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Gallop rhythm

A gallop rhythm refers to a (usually abnormal) rhythm of the heart on auscultation.

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The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system.

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Heart click

With the advent of newer, non-invasive imaging techniques, the origin of other, so-called adventitial sounds or heart clicks has been appreciated.

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Heart failure

Heart failure (HF), often referred to as congestive heart failure (CHF), is when the heart is unable to pump sufficiently to maintain blood flow to meet the body's needs.

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Heart murmur

Heart murmurs are heart sounds produced when blood flows across one of the heart valves that are loud enough to be heard with a stethoscope.

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Heart valve

A heart valve normally allows blood to flow in only one direction through the heart.

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Hypertrophic cardiomyopathy

Hypertrophic cardiomyopathy (HCM) is a condition in which a portion of the heart becomes thickened without an obvious cause.

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Iambic pentameter

Iambic pentameter is a type of metrical line used in traditional English poetry and verse drama.

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Inflammation (from inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective response involving immune cells, blood vessels, and molecular mediators.

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Inhalation (also known as inspiration) happens when oxygen from the air enters the lungs.

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Intercostal space

The intercostal space (ICS) is the anatomic space between two ribs (Lat. costa).

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A laptop, also called a notebook computer or just notebook, is a small, portable personal computer with a "clamshell" form factor, having, typically, a thin LCD or LED computer screen mounted on the inside of the upper lid of the "clamshell" and an alphanumeric keyboard on the inside of the lower lid.

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Left bundle branch block

Left bundle branch block (LBBB) is a cardiac conduction abnormality seen on the electrocardiogram (ECG).

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Mitral valve

The mitral valve, also known as the bicuspid valve or left atrioventricular valve, is a valve with two flaps in the heart, that lies between the left atrium and the left ventricle.

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MP3 (formally MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) is an audio coding format for digital audio.

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Ogg is a free, open container format maintained by the Xiph.Org Foundation.

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An onomatopoeia (from the Greek ὀνοματοποιία; ὄνομα for "name" and ποιέω for "I make", adjectival form: "onomatopoeic" or "onomatopoetic") is a word that phonetically imitates, resembles or suggests the sound that it describes.

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Pericardial friction rub

A pericardial friction rub, also pericardial rub, is an audible medical sign used in the diagnosis of pericarditis.

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Pericarditis is inflammation of the pericardium (the fibrous sac surrounding the heart).

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The pericardium is a double-walled sac containing the heart and the roots of the great vessels.

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Physical examination

A physical examination, medical examination, or clinical examination (more popularly known as a check-up) is the process by which a medical professional investigates the body of a patient for signs of disease.

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Pulmonary artery

A pulmonary artery is an artery in the pulmonary circulation that carries deoxygenated blood from the right side of the heart to the lungs.

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Pulmonary valve

The pulmonary valve (sometimes referred to as the pulmonic valve) is the semilunar valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps.

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Pulmonic stenosis

Pulmonic stenosis, also known as pulmonary stenosis, is a dynamic or fixed obstruction of flow from the right ventricle of the heart to the pulmonary artery.

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In medicine, a pulse represents the tactile arterial palpation of the heartbeat by trained fingertips.

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Regurgitation (circulation)

Regurgitation is blood flow in the opposite direction from normal, as the backward flowing of blood into the heart or between heart chambers.

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Respiratory sounds

Respiratory sounds, breath sounds, or lung sounds refer to the specific sounds generated by the movement of air through the respiratory system. These may be easily audible or identified through auscultation of the respiratory system through the lung fields with a stethoscope as well as from the spectral chacteristics of lung sounds. These include normal breath sounds and adventitious or "added" sounds such as rales, wheezes, pleural friction rubs, stertor and stridor. Description and classification of the sounds usually involve auscultation of the inspiratory and expiratory phases of the breath cycle, noting both the pitch (typically described as low, medium or high) and intensity (soft, medium, loud or very loud) of the sounds heard.

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Right bundle branch block

A right bundle branch block (RBBB) is a heart block in the electrical conduction system.

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Right-to-left shunt

A right-to-left shunt is a cardiac shunt which allows blood to flow from the right heart to the left heart.

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In physics, sound is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.

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Split S2

A split S2 is a finding upon auscultation of the S2 heart sound.

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A stenosis is an abnormal narrowing in a blood vessel or other tubular organ or structure.

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The stethoscope is an acoustic medical device for auscultation, or listening to the internal sounds of an animal or human body.

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Surface anatomy

Surface anatomy (also called superficial anatomy and visual anatomy) is the study of the external features of the body of an animal.

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The systole is that part of the cardiac cycle during which some chambers of the heart muscle contract after refilling with blood.

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Third heart sound

The third heart sound or S3 is a rare extra heart sound that occurs soon after the normal two "lub-dub" heart sounds (S1 and S2).

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Tinnitus is the hearing of sound when no external sound is present.

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Tricuspid valve

The tricuspid valve, or right atrioventricular valve, is on the right dorsal side of the mammalian heart, between the right atrium and the right ventricle.

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University of California, Los Angeles

The University of California, Los Angeles (UCLA) is a public research university in the Westwood district of Los Angeles, United States.

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Valsalva maneuver

The Valsalva maneuver or Valsalva manoeuvre is performed by moderately forceful attempted exhalation against a closed airway, usually done by closing one's mouth, pinching one's nose shut while pressing out as if blowing up a balloon.

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Ventricle (heart)

A ventricle is one of two large chambers in the heart that collect and expel blood received from an atrium towards the peripheral beds within the body and lungs.

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[1] https://en.wikipedia.org/wiki/Heart_sounds

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