10 Questions
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?
The heart is composed of cardiac muscle.
What is the direction of blood flow in the major coronary vessels?
The major coronary vessels indicate the direction of blood flow.
What are the next steps after a biomedical signal is detected by the sensor and transduced into an electrical signal?
filter and amplify the electrical signal
What does the term 'filtering' refer to in the context of biomedical signals?
attenuating interference signals that occur in a different frequency range
Give an example of interference signals that can be attenuated using a low-pass filter in an EEG signal recording.
large EOG signals corresponding to movement of the eye muscles
What is the purpose of amplification in biomedical signal processing?
to increase the strength or amplitude of the electrical signal
Can amplification and filtering be performed using separate circuits or a single integrated device?
both options are possible
Test your knowledge on biomedical instrumentation and electrocardiography (ECG) with this quiz. Learn about the electrical activity of the heart and how it affects the pumping of blood.
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