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5 Cards in this Set

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  • Back
What is the 'volume conductor'?
The conductor of the small currents from the heart to the surface of the skin. In humans, it is the torso
When voltage signals are recorded from arms and legs, we say that the limbs act as ______ conductors connected to the volume conductor
Linear conductors
What are 'bipolar' leads?
Leads placed at strategic points on the body surface which measure the voltage difference between defined electrode pairs
Current flowing towards the positive electrode in an ECG produces an upward/downward deflection on the ECG
Upward
How many heart sounds are there? How many can you normally hear when listening to the surface of the chest?
Four, and two respectively.