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Explain why there is an absence of electrical activity between the following on an ECG: 1. between...

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Medical Sciences

Explain why there is an absence of electrical activity betweenthe following on an ECG:

1. between the P wave and the Q wave

2. between the S wave and the T wave

Need detailed answers please.
Explain multiple mechanisms for how a tissue that has increasedmetabolic activity will gain increased blood flow.
Compare and contrast the excitation-contraction coupling mechanismsof skeletal muscle versus contractile cardiac muscle.

Answer & Explanation Solved by verified expert
4.1 Ratings (648 Votes)
1The flat line between the P wave and the starting of the QRS complex is known as the PR interval where there is no electrical activity at all due to a slight impulse conduction through atrioventricular nodeThe PR interval is the time period between the starting of the atrial depolarization to the starting of the ventricular depolarizationIt is the used to assess the speed of impulse transmission from atria to the ventricleIt should not be too short or long The normal time period of a PR interval is 012022 secIt is used to assess the amplitude of the depolarization acting as the base    See Answer
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