Topic: Cardiac Action Potential
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Why is the cardiac action potential longer?
The reason why cardiac muscle has a longer action potential is to extend the absolute refractory period to prevent another action potential. If too many action potentials stimulate the cardiac muscle it can get into tetanus which keeps the ... Read More »
Source: http://wiki.answers.com/Q/Why_is_the_cardiac_action_potential_lon...
Why is the action potential of the cardiac muscle cells long?
This is because the heart needs enough time to pump blood out to the main arteries. The action potential of the heart (ventricles) is elongated by the opening of the voltage gated Calcium channels causing an influx of positively charged Cal... Read More »
Source: http://wiki.answers.com/Q/Why_is_the_action_potential_of_the_card...
Where does the cardiac action potential originate?
In a normally functioning heart, the SA (sinoatrial) node is the pacemaker of the heart, but if it is nonfunctional then the AV (atrioventricular) node would take over. If it isn't working either then the Bundle of His can trigger contracti... Read More »
Source: http://wiki.answers.com/Q/Where_does_the_cardiac_action_potential...
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Cardiac Action Potential
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in a normally functioning heart, the sa node is the peace maker of the heart, but if it is non functional, than the av node would take over if either the bundle of would take over if either the bundle of his and purkinje fibers can trigger ...
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Source: http://wiki.answers.com/Q/How_does_a_cardiac_action_potential_wor...
Action potential is the change in electrical potentials on the surface of a cell, especially nerve and muscle cells resulting in the transmission of an electrical impulse.
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Source: http://answers.ask.com/Health/Diseases/what_is_action_potential
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Source: http://wiki.answers.com/Q/What_ion_causes_the_plateau_phase_of_a_...
When the membrane potential gets to -40 milliv...
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Action potential is nerve impulse. The best known actions of these impulses are wave-like pulses of voltage traveling along the axons of neurons.
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Source: http://answers.ask.com/Science/Physics/how_does_the_action_potent...
In a normally functioning heart, the SA (sinoatrial) node is the pacemaker of the heart, but if it is nonfunctional then the AV (atrioventricular) node would take over. If it isn't working either then the Bundle of His can trigger contracti...
Read More »
Source: http://wiki.answers.com/Q/What_cardiac_structure_generates_the_ac...
