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What are the definition or meaning of diastole?
definiton or meaning of diastole : Refers to the phase of the cardiac cycle when the heart is relaxed. This phase of the cardiac cycle contributes to the lower number in blood pressure readings, called the "diastolic blood pressure." A value of greater than 90 on three or more different readings over time is used to define hypertension.
What is the definition for systole?
Systole is the phase of the cardiac cycle when the heart muscle contracts, pumping blood out of the chambers into the arteries. It is the period of time when the ventricles of the heart are actively squeezing and pushing blood into circulation.
What can you say about the amplitude of various waves in different cardiac cycles?
In a cardiac cycle, the amplitude of the waves, such as the P wave, QRS complex, and T wave, can vary depending on factors like the strength of the electrical impulses generated by the heart, the conductivity of the cardiac tissue, and the lead placement during an electrocardiogram (ECG). Changes in wave amplitudes may indicate abnormalities in the heart's electrical activity and can help in diagnosing conditions like arrhythmias or heart attacks. Monitoring these wave amplitudes can provide valuable information about the heart's functioning.
What are the two components of cardiac output?
The two components of cardiac output are heart rate (the number of times the heart beats per minute) and stroke volume (the amount of blood pumped out of the heart with each beat). Multiplying heart rate by stroke volume gives the cardiac output, which represents the total volume of blood pumped by the heart per minute.
How is cardiac output calculated?
Cardiac output is calculated by multiplying the heart rate (number of heartbeats per minute) by the stroke volume (amount of blood ejected by the heart with each beat). The formula is: Cardiac output = Heart rate x Stroke volume.
What is the term that refers to the portion of the cardiac cycle when the ventricles contract and eject blood from the heart?
Systolic pressure
What does cardiac output do if the heart rate decreases?
Cardiac output = heart rate X stroke volume Thus, if the heart rate decreases so will the cardiac output, assuming the stroke volume is constant.
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 do you call the circulation of the heart to the lungs and back to the heart?
cardiac cycle
What portion of the cardiac cycle is shortened by this more rapid heart rate?
The diastolic phase is shortened by a more rapid heart rate. This is the phase when the heart muscle relaxes and fills with blood. A faster heart rate reduces the time available for the heart to refill, impacting cardiac output.
How does the heart contract or relax?
The heart contracts and relaxes during a cardiac cycle.
What is the name given to contraction phase of the cardiac cycle?
The contraction phase of the cardiac cycle is called systole. This is when the heart muscle contracts to pump blood out of the heart and into the circulatory system.
Each complete heart beat is called what?
cardiac cycle
As heart increases what would happen to cardiac cycle?
it repeats
One complete heart beat is known as?
Cardiac Cycle
What is the first part of the cardiac cycle called?
The first part of the cardiac cycle is called diastole, which is when the heart relaxes and fills with blood. This is followed by systole, when the heart contracts to pump blood out to the body.
Function of the crdiaac tissues?
Cardiac tissue is the heart muscle and its function is to pump blood between the heart-lungs cycle and the heart-body cycle.
