Why does the heart beat all the time?

Why does the heart beat regularly and all the time? It is because there is a small nodule made of special cells in the right atrium of the human body, which is medically called the sinus node. It can automatically and rhythmically generate an electric current, which is transmitted to all parts of the heart in the order of conduction tissues, causing the heart to contract and relax, and causing the heart to carry out rhythmic and repeated contraction and diastolic activities.

The heart is the source of the body's movement. The heart is not working without rest, because there is a small nodule composed of special cells in the right atrium of the human body, which is medically called the sinus node, which can automatically and rhythmically produce an electric current, which is transmitted to all parts of the heart in the order of conduction tissues, causing contraction and relaxation of the heart, and making the heart carry out rhythmic cycle of contraction and diastolic activities, contraction represents work, diastole represents rest, so the heart will keep beating.

The heart beats because there are autonomic cells in the sinus node of the heart, and the autonomic cells spontaneously send out nerve impulses, which are transmitted to the sinus node and then cause the heart to beat autonomously. Through the rhythmic contraction and relaxation of the heart, blood is pumped to all parts of the body, and the exchange of nutrients, oxygen and metabolic waste products is realized, providing energy for the normal physiological activities of cells in various organs of the body.

I will answer "why the heart can beat all the time", because the heart contains a tissue called the sinus node, which contains many cells with autonomous rhythms called Qibo cells, which are equivalent to the command center of the heart, and they can send out 60 to 100 electrical impulse signals per minute, which are transmitted to the entire heart and innervate the contraction and expansion of the myocardium until death! When it occurs, it can cause changes in the heart rate, called sinus arrhythmias.

The heart is able to beat rhythmically and relies on two types of cardiomyocytes: working cells, which include the atrial and ventricular muscles, which have stable resting potentials and perform contractile functions; The latter, which mainly includes sinus node cells and Purkinje cells, is a special type of myocardial fiber with the ability to excite autorhythmically.

The heart is an autonomous-beating organ, not controlled by the consciousness of the brain, the sinus node, the atrioventricular node and other conduction tracts have the function of controlling the heart beat, which is dominated by the sinus node, when the sinus node is damaged and does not send out electrical signals, the atrioventricular node and other conduction tracts will replace the electrical signals of the sinus node, each sending out its own electrical signal to dominate our heart muscle, the emperor loses power, and the world is in chaos!

The heart is a blood pump of the human body, which transmits oxygen to various organs of the body, and there is a sinus node on the heart, which mainly plays a role. This sinus node is broken, and a pacemaker can be fitted. If there is a heartbeat, it means that it is still alive, and if the heartbeat stops beating for more than 4 minutes, the brain cells will liquefy, so protect your little heart.

If the heart is stopped, compressions should be done immediately.

Because the heart has its own electrophysiological system, it can be transmitted from the sinus node, atrioventricular node, internodal bundle, and left and right bundle branches down one by one. Complete each heart beat.

The heart is very important, it is the function of the machine that runs throughout the body, and it is not good if the work is stopped.