(from The ECG). Explain the physiological mechanisms that are responsible for the variation in resting heart...

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Medical Sciences

(from The ECG). Explain the physiological mechanisms that areresponsible for the variation in resting heart rate that occursduring inspiration and expiration.

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The variation in the heart rate during respiratory cycle inhalation and exhalation is called respiratory sinus arrhythmia The mechanism is as follows During inspiration the stretch receptors of the lung are activated They send sensory information to the    See Answer
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