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6 Cards in this Set
- Front
- Back
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what connects on cardiac muscle tissue to another?
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desmosomes
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what allow action potential conduction from one fiber to the next?
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gap junctions
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what muscle fibers are self excitable and Repeatedly generate action potentials that trigger heart contractions?
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autorythmic fibers,
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what are the 2 functions of autorythmic fibers?
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form conduction system and act as a pacemaker
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the sinoatrial node acts as a natural?
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pacemaker.
(faster than autorhythmic fibers) |
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nerve impulses from autonomonic nervous system (ANS) and hormones modify timing and strength of each ?
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heartbeat
but do not establish fundamental rhythm |
