electrocardiography
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is Depolarization? | occurs when sodium rushes in to the cell, resulting in a positive charge and start of electrical current flow
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| What is Re-polarization? | when the cell is returned to his resting negative charge
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| What two things are the electrical events of hearts system called? | Depolarization & Re-polarization
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| What are the two mechanical events of the hearts system ? | Contraction & relaxation
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| True or False electrical precedes mechanical, there can be no heart beat (mechanical event) without first having had Depolarization(the electrical stimulus) | TRUE
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| The Action Potential IN PHASE 4: what happens to the Ventricular muscle cell ? | CARDIAC CELL IS AT REST, Its negatively charged, its resting with a trans membrane potential of 90 Milli volts, electrically nothing is happening
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| The Action potential IN PHASE 0: What happens to the cardiac cell ? | The cardiac cell is stimulated, sodium rushes in to the cell, potassium leaks out which results in( depolarization)
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| What dose PHASE 0: correspond with on the EKG? | the QRS COMPLEX
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| what dose PHASE 4 : Correspond to on the EKG? | ( FLAT LINE ON THE EKG- FLAT LINES INDICATE ELECTRICAL SILENCE)
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Created by:
jflores2009
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