0
During what phase of cardiac cycle are all four chambers in diastole?
Wiki User
∙ 9y ago
Once the ventricles contraction phase is over, the diastole starts. Then all the four chambers are in diastole, till the atria start to contract.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What is stroke volumes and cardiac output?
Systole refers to the contraction of muscle fibers in the myocardium, diastole refers to relaxation of the fibers in the myocardium, stroke volume is the volume of blood ejected from the heart during the cardiac cycle. Finally the cardiac cycle refers to all of the aforementioned items and is the entire cycle of the heart from systole to diastole. Mike Branch HAMILTON ISLAND EMERGENCY RESPONSE TEAM.
What are the two main phases of a heartbeat?
There is the contraction of the atria and the contraction of the ventricles. When the atria contract, the AV valves are open, allowing the blood to fall into the ventricles. The AV valves then close, and the ventricles contract, pumping the blood out into the arteries.
What is the graphic of heart sounds produced during the cardiac cycle?
Phonocardiogram
What initiates the p wave?
cardiac cycle
What is the operation of a camera during a cardiac blood pool scan?
The camera is synchronized with an electrocardiogram (ECG) to take a picture at specific times in the cycle of heart contraction and relaxation.
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
What is the relaxing phase of the cardiac cycle?
The resting phace of the cardiac cycle is known as the refractory period
Relaxation of the ventricles is?
Is the beginning of the cardiac cycle when the ventricles start to relax all four chambers are in diastole.
What is the phase in the cardiac cycle in which the ventricles relax between contractions?
The ventricles relax during diastole.
Which phase of the cardiac cycle is longest?
ventricular diastole
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...
The stage of the cardiac cycle that directly follows the resting period?
Diastole
What phase of the cardiac cycle is longest?
Atria Diastole is the longest (0.7sec)
When does majority of the coronary artery fill?
The coronary artery fills during the diastolic phase of 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 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 are the phases of the cardiac cycle?
Mid-to-late diastole, ventricular systole and early diastole
