4 Answers
Cardiac cycle is defined as the complete cycle of events in the heart from the beginning of one heart beat to the beginning of the next. It comprises three stages – atrial systole, ventricular systole, and complete cardiac diastole.
Cardiac output is defined as the amount of blood pumped out by the ventricles in a minute.
Cardiac Cycle: The sequential contraction and dilatation of different chambers of heart in a cyclical manner is called cardiac cycle.
Cardiac Output: The volume of blood pumped by the heart in one minute is called the cardiac output. The average cardiac output is 5000 ml or 5 litre per minute.
The sequential events that occur from the beginning of one heart beat to the beginning of the next heart beat which is cyclically repeated is called the cardiac cycle. The volume of blood pumped by the ventricle per minute is called the cardiac output. It ranges about 5000 ml (5 L) in a healthy individual.
Cardiac Cycle: The rhythmic contraction and dilatation of different parts of heart in one beat is called cardiac cycle. Cardiac Output. The heart beats 72 times per minute, i.e., that many cardiac cycles are performed per minute. From this it could be deduced that the duration of a cardiac cycle is 0.8 seconds.
During a cardiac cycle, each ventricle pumps out approximately 70mL of blood which is called the stroke volume. The stroke volume multiplied by the heart rate (no. of beats per min.) gives the cardiac output. Therefore, the cardiac output can be defined as the volume of blood pumped out by each ventricle per minute and averages 5000 mL or 5 litres in a healthy individual.