BRAINCAKEHeart Sounds
The sounds of the heartbeat heard through a sthetoscope are made by the valves closing due to blood pressure.
The two sounds of the heartbeat are described as lub-dub.
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More in Transport in Animals
- Return of Tissue Fluid to Blood
- Chloride Shift
- Human Heart
- Structure and Function of the Heart
- Cardiac Cycle
- Basic Rhythm of the Heart
- Electrocardiograms
- Aortic Aneurysms
All 22 lessons in Transport in Animals · All OCR AS-level Biology topics