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what is special about tissue present in the heart?

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Special tissue present in heat is muscule these have the following features
Cardiac mucle fibres are supplied with both central and autonomic nervous system and not under the control of animal will.
(ii) these muscles are immune to fatigue and show rhythmicity .
(iii) They have rich blood suppy .
they posses the property of contraction even if isolated from the body completely i.e they are myogenic.
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