Cardiac cycle and cardiac output are both terms used to describe the functioning of the heart. While cardiac cycle refers to the alternate contraction and relaxation of the heart during each heartbeat, cardiac output is a measure of how much blood the heart pumps during each minute. In this blog, we will explore the differences between these two concepts, and how they are related to one another.
Definition of cardiac cycle
The cardiac cycle refers to the sequence of events that occur throughout a single heartbeat. It is the process by which the heart pumps oxygenated blood from the pulmonary circulation to the systemic circulation.
The cardiac cycle consists of four distinct phases: diastole, systole, isovolumic contraction, and isovolumic relaxation. In contrast, cardiac output is a measure of the volume of blood the heart pumps per minute and is calculated by multiplying the stroke volume by the heart rate. Therefore, the key difference between the cardiac cycle and cardiac output is that the cardiac cycle is the sequence of events that occur throughout a single heartbeat, whereas the cardiac output is the volume of blood the heart pumps per minute.
Definition of cardiac output
Cardiac output is the amount of blood pumped by the heart over a period of time. It is calculated by the formula stroke volume multiplied by heart rate.
The cardiac cycle is the sequence of events that occur from the beginning of one heartbeat to the beginning of the next. It is divided into two phases: systole and diastole. The difference between cardiac cycle and cardiac output is that the cardiac cycle is the sequence of events that occur in one heartbeat, while cardiac output is the amount of blood pumped by the heart over a period of time.
Comparison of cardiac cycle and cardiac output
The cardiac cycle and cardiac output are two important aspects of the cardiovascular system. While these terms are often used interchangeably, there are key differences between the two that must be understood. The cardiac cycle is the sequence of events that occur when the heart pumps blood throughout the body.
The cardiac cycle is the sequence of events that occur when the heart pumps blood throughout the body. This includes the contraction and relaxation of the atria and ventricles, as well as the opening and closing of the valves. Cardiac output, on the other hand, is the amount of blood that is pumped out of the heart in one minute.
It can be calculated by multiplying the stroke volume (the amount of blood pumped with each beat) by the heart rate (number of beats per minute). While the cardiac cycle and cardiac output are related, the cycle is the sequence of events and the output is the measure of blood pumped.
Physiological effects of cardiac cycle and cardiac output
The cardiac cycle and cardiac output are two vital components of the cardiovascular system. While they are closely related, there is a distinct difference between the two that is important to understand.
It includes the contraction and relaxation of the atria and ventricles, the opening and closing of the valves, and the filling and emptying of the chambers. On the other hand, cardiac output is the amount of blood pumped by the heart in one minute.
It is determined by the heart rate and the stroke volume, which is the amount of blood pumped with each beat of the heart. Together, the cardiac cycle and cardiac output help to ensure that the body receives a steady supply of oxygenated blood to its cells and tissues.
Common diseases related to cardiac cycle and cardiac output
Cardiac cycle and cardiac output are two closely related terms, but they are not interchangeable. The cardiac cycle is a sequence of events that occur in the heart during one heartbeat.
Cardiac output, on the other hand, is the amount of blood pumped by the heart in one minute. It is a measure of the heart’s ability to pump blood throughout the body.
Common diseases related to the cardiac cycle and cardiac output include coronary artery disease, arrhythmias, and congestive heart failure. These conditions can have a significant impact on the heart’s ability to pump blood and lead to life-threatening complications. It is important to seek medical attention if you experience any symptoms of cardiac disease.
Bottom Line
In conclusion, the cardiac cycle and cardiac output are two distinct concepts related to the heart. The cardiac cycle is the sequence of events that occur in the heart during each heartbeat, while cardiac output is the amount of blood that is pumped by the heart per minute.
Understanding the difference between the cardiac cycle and cardiac output can help improve our overall knowledge of heart health and the cardiovascular system.
