Cardiac Cycle Ventricular systole – isovolumic contraction – ejection Ventricula

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Cardiac Cycle Ventricular systole – isovolumic contraction – ejection Ventricula

Jurecki, Mike, Host has reference to this Academic Journal, PHwiki organized this Journal Cardiac Cycle Ventricular systole – isovolumic contraction – ejection Ventricular diastole – isovolumic relaxation – rapid filling – atrial contraction

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4) Ventricular Filling 5) Atrial Contraction Isovolumic Ventricular Contraction 2) Ventricular Ejection 3) Isovolumic Ventricular Relaxation

Skeletal muscle Motor nerve Conclusion The heart generates electricity. TERMINOLOGY Excitation – definition: generation of action potentials – different from contraction Contraction – definition: shortening of muscle cells – triggered by excitation

Excitation Contraction [ Ca++ ]i (Action Potentials) (shortening) Properties of Cardiac Muscle Excitation of the heart is triggered by electrical impulse rather than neural transmitters. Contraction of the heart is triggered by elevation of intracellular calcium influx.

RRole of a Long Refractory Period – 1 prevent ventricles from contracting at too high rates so that enough time is allowed as long as refill of the ventricles

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EELECTROCARDIOGRAPHY ((ECG) the recording of electrical activities of the heart via electrodes placed on body surface.

Surgical Therapies 1)

Jurecki, Mike Host

Jurecki, Mike is from United States and they belong to Bickley and MJ – KGME-AM and they are from  Phoenix, United States got related to this Particular Journal. and Jurecki, Mike deal with the subjects like Sports

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This Particular Journal got reviewed and rated by California College of Arts and Crafts and short form of this particular Institution is US and gave this Journal an Excellent Rating.