atrial sound

atrial sound
fourth heart s.

Medical dictionary. 2011.

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  • sound — 1. The vibrations produced by a sounding body, transmitted by the air or other medium, and perceived by the internal ear. 2. An elongated cylindrical, usually curved, instrument of metal, used for exploring the bladder or other cavities of the… …   Medical dictionary

  • Atrial myxoma — An atrial myxoma is a non cancerous tumor in the upper left or right side of the heart. It grows on the wall (atrial septum) that separates the two sides of the heart.CausesA myxoma is a primary heart (cardiac) tumor. This means that the tumor… …   Wikipedia

  • Fourth heart sound — Infobox Disease Name = PAGENAME Caption = DiseasesDB = ICD10 = ICD9 = ICD9|427.9 ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = The fourth heart sound or S4 is a rare extra heart sound that occurs immediately before the… …   Wikipedia

  • Third heart sound — Infobox Disease Name = PAGENAME Caption = DiseasesDB = ICD10 = ICD9 = ICD9|427.9 ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = The third heart sound or S3 is a rare extra heart sound that occurs soon after the normal two… …   Wikipedia

  • fourth heart sound — (S4) the heart sound associated with atrial contraction, occurring during the presystolic phase of diastole. It is rarely audible in normal hearts but when accentuated is usually called an S4 gallop. See also gallop rhythm, under rhythm …   Medical dictionary

  • Mitral stenosis — Classification and external resources Mitral stenosis with marked thickening of the leaflets and left atrial hypertrophy. Superior view. Autopsy preparation …   Wikipedia

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  • Heart sounds — Front of thorax, showing surface relations of bones, lungs (purple), pleura (blue), and heart (red outline). The location of best auscultation for each heart valve are labeled with M , T , A , and P . First heart sound: caused by atrioventricular …   Wikipedia

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