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Paper 3Theory (Core)2 marks
Heart valve sounds provide information about the heart's function.
Description
Heart Valve Sounds
The heart makes characteristic sounds when its valves close during the heartbeat cycle. These sounds can be heard using a stethoscope.
- a[1]
State what causes the 'lub-dub' sounds of the heart.
Aim for approximately 1 distinct marking point.
- b[1]
Identify one device used to listen to heart valve sounds.
Aim for approximately 1 distinct marking point.
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