Questions and Answers
What is the purpose of an ECG?
The purpose of an ECG is to measure the electrical activity of the heart.
What does the ECG indirectly measure?
The ECG indirectly measures transmembrane voltages in myocardial cells that depolarize and repolarize within each cardiac cycle.
How does cardiac muscle differ from skeletal muscle?
Cardiac muscle is involuntary, while skeletal muscle is voluntary.
What is the structure of the heart?
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What is the direction of blood flow in the major coronary vessels?
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What are the next steps after a biomedical signal is detected by the sensor and transduced into an electrical signal?
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What does the term 'filtering' refer to in the context of biomedical signals?
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Give an example of interference signals that can be attenuated using a low-pass filter in an EEG signal recording.
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What is the purpose of amplification in biomedical signal processing?
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Can amplification and filtering be performed using separate circuits or a single integrated device?
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