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Human heart is myogenic....

Human heart is myogenic.

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(1) The heart shows autorhythmicity because the impulse for its rhythmic movement develops inside the heart. Such heart is called myogenic.
(2) Some of the cardiac muscle fibres become autorhythmic (self-excitable) and start generating impulses during development.
(3) These authorhythmic fibres perform two important functions, viz. acting as a pace maker and setting the rhythm for the heart.
(4) They also form conducting system for conduction of nerve impulses throughout the heart muscles.
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