Heart murmur Notes: Definitions & Explanations PDF | Download eBooks
Study Heart murmur lecture notes PDF with biology definitions and explanation to study What is Heart murmur?. Study heart murmur explanation with biology terms to review biology course for online degree programs.
Heart murmur Definition:
If blood squirts backward through a defective valve, it may produce an abnormal sound called a heart murmur.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Heart murmur Notes:
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. Some people are born with heart murmurs; in others, the valves may be damaged by infection (from rheumatic fever, for instance). When a valve defect is severe enough to endanger health, surgeons may implant a mechanical replacement valve. However, not all heart murmurs are caused by a defect, and most valve defects do not reduce the efficiency of blood flow enough to warrant surgery.
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