1/4/2023 0 Comments Integrity air 3000 partsBut they would do so only in the unfortunate event of the failure of the SA node. In addition to this, the tissues that constitute the heart muscle are also capable of contracting and expanding spontaneously. A specialized muscular arrangement called SA node is the ‘battery’ that makes the heart function. For me, as a layman, it was really amazing. In case of a mid-air failure, it would automatically convert each seat into a self-powered ‘helicopter’ that would make the plane fly slowly, to safety. The cardiologist had compared it with a hypothetically safest ever airplane. When I recently read a description of the electrical system of our heart in Quora, my surprise surpassed all limits.
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