Why does the heart beat? What is the reason?

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.

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.

Cardiac arrest is common in premature heart beats, lack of sleep, overwork, mood swings and other conditions can cause premature heart beats, which need to be observed on an electrocardiogram (ECG). When the heart stops beating, blood cannot be transported to all parts of the body, resulting in a lack of oxygen to cells and organs, resulting in functional necrosis of organs, which in turn leads to death. Oxygen and blood are the main driving forces that support the heart's beating, and ischemia and negative oxygen are the main causes of cardiac dysfunction and heart disease.

First of all, the heart is divided into left atrium, right atrium, left ventricle, right ventricle, left heart is systemic circulation, that is, blood circulation throughout the body, right heart is pulmonary circulation, that is, blood supply to the lungs, and the whole body blood is a circulatory system, so it is also blood circulation that supports the beating of the heart. A very simple sentence. "Flow" is energy.

Food passing through the body is replenishing energy to you, and your activities in the outside world are consuming energy. It's essentially "flowing". Primordial energy** to the mother.

Energy comes from the digestion and absorption of food, and the most important energy substance in the human body is glucose. Maybe you mean to ask why the heart can keep beating, in addition to the energy ** accident, the most important thing is that the heart sinus node pacemaker can automatically trigger every normal beat.

Analysis: The heart generates an electric current through various ion exchanges, called cardiac electrical signals. A normal person's heartbeat should be a sinus rhythm, that is, the electrical activity emitted by the sinus node is conducted downwards in turn, and this electrical activity causes the contractile activity of the heart muscle through the coupling of heart excitement and contraction, that is, causing the heart to beat.

Each heartbeat involves contraction and relaxation of the heart muscle. When the heart relaxes, blood enters the heart, and when the heart contracts, blood is pumped out of the heart, into the aorta, and then to the peripheral blood vessels, which supply blood throughout the body**.

The reason why the heart beats is because the function of the heart is to pump blood throughout the body, so that the blood flow in our body, so the heart muscle will contract and relax.

The heart beats because there is a conduction system in the heart, which is an impulse from the sinus node, and then passes through the atria to the atrioventricular node, and then to the ventricles, causing the heart to contract, and only the normal beating of the heart can provide blood and oxygen to the whole body.

Cardiac fibrillation mainly refers to the fact that there may be convulsions in the heart area, and the patient will also feel that his heart is beating very strongly. If the heart flutters suddenly, it is likely that you have a premature beat, or it may be because of too much pressure at work.

There are a lot of cells in it, and there are some contraction and conduction functions, so there will be more jumps under the influence of the outside world, but this is very normal, in order to maintain people's lives.

Because it's a symbol of our lives. Because it is controlled by the muscles, the blood is pumped throughout the body through the contraction of the muscles.

The heart beats because there is a conduction system in the heart. The pulses are emitted from the sinus node and then travel through the atria to the atrioventricular node and then to the ventricles, causing the heart to contract. Only the normal beating of the heart can supply blood and blood throughout the body. Oxygen.

The heart is the central hub of the human body, any activity and behavior needs the blood pumped by the heart to support, we all know that the thing in the stomach is the heart, so why does the heart have been beating from birth to death? What is the reason for this? Let's find out.

It's the heart at work. From birth to old age, the heart is always beating, pushing blood back and forth in the blood vessels, bringing oxygen and nutrients to all parts of the body. At the same time, the waste is transported to ensure the smooth progress of life activities.

Each heartbeat is divided into two parts: work and rest. The heart rests much longer than it does at work, so the heart is always beating tirelessly.