What is Heartbeat?

Have you ever thought about what is pumping blood inside your body? So, let us learn about the pumping organ. It is the heart. The heart is a muscular organ in many animals. The heart pumps blood through the veins of the circulatory system. The pumped blood conveys oxygen and supplies to the body while conveying metabolic waste, maintaining blood pressure, etc. For example, carbon dioxide to the lungs.

In people, the heart is roughly the size of a fist and is situated between the lungs and the chest's centre compartment. In human beings, different vertebrates, and birds, the heart is partitioned into four chambers: upper left and right atria and lower left and right ventricles. Commonly, the right chamber and ventricle comprise together as the right heart and their left partners as the left heart.

The Heart

Human Heartbeat

The rhythmic contraction and relaxation of heart muscles are known as heartbeat. Once it starts from birth then it will continue till death. If someone's heart is not beating that means the person is dead. Heart rate is defined as the number of heartbeats per minute.

A heartbeat is a two-section pumping move that starts about a second.  As blood gathers in the upper chambers (the right and left atria), electrical signals are sent that make the atria contract.

This compression drives blood through the valves into the resting lower chambers (the right and left ventricles). This piece of the two-section pumping stage (the more extended of the two) is called diastole.

The second part of the pumping stage starts when the ventricles are loaded with blood. The electrical signals travel along a pathway of cells to the ventricles, making them contract. This is called systole. 

From the left ventricle, the blood flows through the aortic valve to the rest of our body. After blood moves into the pulmonary artery and the aorta, the ventricles unwind, and the valves close. The valve then opens again. This cycle continues. 

Heart Rate

The number of times your heart beats in a minute is known as your heart rate or pulse. Everybody's heart rate is different. When you are at rest, it is lower, whereas during exercise, it is higher.

The heart normally beats around 60 to 80 times each minute when you are at rest. However, this can vary. As you get older, your resting pulse rises. It is typically lower in individuals who are physically fit.

It can increase due to stress, anxiety or any medical reason.

Heartbeat

Summary

The muscular organ which is about the size of a fist is known as the heart, found simply behind and somewhat left of the lungs. The heart pumps blood through the organisation of courses and veins called the cardiovascular system. There are four chambers of heat. The heart pumps blood to the whole body.

Fish, conversely, have two chambers, a chamber, and a ventricle, while reptiles have three chambers. In a healthy heart, blood streams one way through the heart because heart valves prevent backflow. The heart is present in a protective sac, the pericardium, which likewise contains a limited quantity of fluid. The epicardium, myocardium, and endocardium are three layers of the heart.