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What controls the firing of the sinus node to trigger the start of the cardiac cycle?
Wiki User
∙ 8y ago
Sinus node
Wiki User
∙ 8y ago
Anonymous
the automatic nervous system
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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.
When do the AV valve close during the cardiac cycle?
AV valves close during the systole phase of the cardiac cycle.
The water cycle controls the precipitation and what?
The water cycle controls the precipitation and evaporation of water in the atmosphere.
Which is the phase of cardiac cycle in which the auricles contract?
The auricles will contract during the systolic phase of the cardiac cycle. This is one of the numbers that is measured when a patient has their blood pressure taken.
Each complete heart beat is called what?
cardiac cycle
Is the p wave part of the cardiac cycle?
Yes - On an ECG the P wave is the first wave of the cardiac cycle. It represents the Sinoatrial node which is the natural pacemaker of the heart firing and causing the atria to contract in order to fill the ventricles.
What is one complete heartbeat called?
The cardiac cycle.
What is the importance of cardiac cycle?
The importance of cardiac cycle is to sustain human life.
What is the period of time called between the beginning of one heartbeat and the start of the next?
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.
When do the AV valve close during the cardiac cycle?
AV valves close during the systole phase of the cardiac cycle.
What is a cardiac cycle?
Cardiac cyccle is the term referring to all of the events related to the flow of blood that occur from the beginning of one heartbeat to the beginning of the next. The frequency of the cardiac cycle is the heart rate.
What initiates the p wave?
cardiac cycle
What controls the heat pump to determine whether it is in the heating cycle or the cycle?
what controls the heat pump to determine whether it is in the heating cycle or cooling cycle
The water cycle controls the precipitation and what?
The water cycle controls the precipitation and evaporation of water in the atmosphere.
What controls the heat pump to determine whether or it is in the heating cycle or the cooling cycle?
what controls the heat pump to determine whether it is in the heating cycle or cooling cycle
What controls the heat pump to determine whether it is heating cycle or the cooling cycle?
what controls the heat pump to determine whether it is in the heating cycle or cooling cycle
