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The R wave of the ECG is most closely associated with which phase of the cardiac contraction cycle?
Wiki User
∙ 14y ago
Ventricular contraction.
Wiki User
∙ 14y ago
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What is the significance of anacrotic limb seen in the graph of arterial pulse?
It is indicative of the degree of vibration set up in the aorta by the ventricular contraction during rapid ejection phase of cardiac cycle.
During which portion of the cardiac cycle is it possible to induce extra systole?
Extrasystole is an extra ventricular systole that happens during the begging of relaxation (repolarization). Since the cardiac is able to depolarize only after repolarization, any stimulus upon the repolarization period created an increased ventricular contraction or which is also called extrasystole but not a new contraction.
What is the period of time called between the beginning of one heartbeat and the start of the next?
Cardiac cycle
Which phase of the cardiac cycle is longest?
ventricular diastole
What is the relaxing phase of the cardiac cycle?
The resting phace of the cardiac cycle is known as the refractory period
Which phases of the business cycle would be most closely associated with an economic contraction?
Recession
What is the alternating relaxation and contraction of the heart called?
Diastole is the relaxation phase. Systole is the contraction phase. If you put these phases together you have the Cardiac Cycle...
What is a complete cycle of a heart contraction and relaxation called?
Cardiac cycle, which is made up of atrial and ventricular systole and diastole.
What does the term systole mean?
Systole is the period of heart contraction within the cardiac cycle.
What is a terminal systole?
is the sthrenght of the last contraction of the ventricles of the heart, at the end of the cardiac cycle.
The period of time during a cardiac cycle when contraction occurs and blood pressure rises?
systole
What are all the events associated with one heartbeat called?
Cardiac Cycle
How hydrostatic pressure is generated in the heart?
Hydrostatic pressure is generated by the systole (contraction of the ventricles).
During which phase of the cardiac cycle do the ventricles relax and fill with blood?
diastole is when all 4 chambers of the heart are at rest after a cardiac cycle systole is the term used to describe the heart during a contraction
During which 2 periods of the cardiac cycle do the heart muscle fibers exhibit isometric contractions?
Isovolumetric contraction and Isovolumetric Relaxation
What part of the cardiac cycle is associated with the QRS complex?
The cardiac cycle refers to a complete heartbeat, including the systole and diastole. The QRS complex occurs during the depolarization of the right and left ventricles of the human heart.
What is one complete heartbeat called?
The cardiac cycle.
