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The function of the heart is to promote blood flow, mainly to provide sufficient blood flow to organs and tissues, source oxygen and various nutrients, and take away the end products of metabolism, such as carbon dioxide, urea and uric acid, so that cells maintain normal metabolism and function.
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The beating of the heart, which pushes the flow of blood, transports nutrients to the limbs and organs, and takes away metabolites. Carrying oxygen to the brain, so you can think refreshedly, what else can the heart do for us humans besides beating?
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The small machine that supplies blood to the whole body, when the machine does not move, the person dies.
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Blood! Think about how the engine of a car works, our heart is the same as that engine, we need "blood" as "fuel", blood = gasoline!!
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[Fractals and Chaos 10] Why does the heart beat? Synchronization everywhere.
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How does the heart beat?
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[Fractals and Chaos 10] Why does the heart beat? Synchronization everywhere.
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There is no heartbeat but can live like a normal person, from which the greatness of the artificial heart can be reflected, this is a high-tech product, but also has a different structure to help people solve the pain, healthy life.
On October 26th, through relevant information, we learned that there was a talk show actor named Wang 17, who had serious failure because of heart disease, and in this talk show actor, when his life was in danger, he used an artificial heart, and now he can live a healthy life, which is also a magnetic levitation artificial heart independently developed by our country. It can be found that this artificial heart is characteristic, no matter how it falls, it will keep rotating at an angle Now Wang Seventeen's life is very normal, and he can ride 15 kilometers a day, such a healthy life is particularly difficult for him, and the artificial heart also provides him with this opportunity, so as to live a healthy life.
Heart failure, which is a very difficult disease, is a very significant challenge for medicine, through relevant statistics, some adults because the prevalence of heart failure can be as high, and the number of patients can exceed 10 million, unlike other diseases, the heart can not be regenerated, so artificial heart has become the hope of people with heart failure. The first patient in the world to have an artificial heart is Robert Tols, who was already in the advanced stage of heart disease before the operation, and the doctor just hoped that the patient would live for 30 more days, but the surprise thing was that when the operation was successful, the patient lived for nearly 5 months.
Next, the principle of artificial heart, some mechanical pumps have prototypes, mainly to help people's bodies become healthier, but also to make the blood of the heart have auxiliary flow channels, through the blood pump and drive devices and monitoring systems, as well as energy These four major components, and each working principle is also different, so as to help people live a healthy life.
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An artificial heart is an artificial heart installed in the human body, usually composed of a hydraulic pump and a built-in battery, which can temporarily or permanently replace heart function and save heart disease patients through full magnetic levitation technology.
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The artificial heart is basically composed of four parts: blood pump, driving device, monitoring system and energy source.
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In fact, it is the same principle as the fish tank water pump, which constantly pumps blood to the blood vessels.
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Just as the respiration of the cells of the heart produces energy, which supports the heart's beating, allowing the heart to pump blood to the rest of the body, and the cells in the body use the oxygen in the blood to respirate and produce energy for their normal functioning.
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Energy is extracted from the food we usually consume. That's why humans need to eat to keep their basic organs running.
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Not only the energy of the heart, but also the energy of the entire human body comes from the food that people absorb. The heart supplies blood to the rest of the body, as well as its own blood.
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Refrigeration equipment (air conditioner, refrigerator) compressor, reciprocating water pump, air compressor (commonly known as air pump).
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Based on the characteristics of the shark's skin, professional swimsuits were researched and designed, and now they are widely used in the Olympic Games.
People designed and invented wall-climbing robots based on the principle of gecko's toes adsorbing walls, and people invented solar ...... that automatically turned their heads according to the phototropism of plants
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At the end of the 19th century, scientists discovered the sinus node at the entrance of the superior vena cava in the right atrium, the atrioventricular node between the atrium, and the Utachino fiber between the atrioventricular node. It is composed of the sinus node, the > atrioventricular node, and the fibers of the > and the Ura, which form a special current conduction system that transmits the "command" of the heartbeat.
The various autonomic cells of the heart have the ability to excite automatically, so they can pacify the heart's beat. However, the rhythmicity of different autonomic cells varies.
The highest rhythm is the sinus node with about 100 beats, the atrioventricular node is about 50 times, and the lowest is the urabayno fiber, about 20-40 times. This electrical conduction system can also be transmitted to the surface of the human body, measured, enlarged and printed out by an electrocardiogram machine, which is called an electrocardiogram.
When the sinus node is diseased, the heartbeat can only be maintained by the atrioventricular node and Pu Tingye fiber, which can only beat less than 50 times per minute, which cannot meet the needs of the body, so a variety of heart rhythm disorders occur, and even cause cardiac arrest. This does not require the installation of a pacemaker to maintain and control the beating of the heart and ensure the normal needs of the human body.
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[Fractals and Chaos 10] Why does the heart beat? Synchronization everywhere.
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The heart beats because some cardiomyocytes such as sinus node and atrioventricular node have automaticity, and due to the continuous depolarization and repolarization of the cell membrane, the action potential is transmitted to the atrium and then transmitted to the ventricle through the atrioventricular node, so that the myocardium is excited and contracted.
The normal frequency of the sinus node is 100 beats per minute, which controls the rhythm of the entire heart, and because the heart is inhibited by the vagus nerve, the normal normal heart rate is 60 100 beats per minute.
If your father is in his 40s, the normal heartbeat range should be 70 to 100, as long as it is not lower than 60, it is normal, and the slower the heartbeat, the healthier the person. However, some diseases can also cause a slow heartbeat, so if your dad still has concerns, see a doctor. You can get a booster shot to temporarily increase your heart rate, but the best way is to do a thorough check.
If a person's heart beats less than 60 times per minute, it is "slow heartbeat", also known as "bradycardia". Normal people or athletes may appear, especially athletes, because regular exercise increases the contraction force of the heart, and the output of blood per beat increases, which is enough for the needs of various organs of the body, so the heartbeat of 50-60 times per minute is enough. However, if the heartbeat is only 30-40 beats per minute, it may be abnormal, and the cause should be investigated. >>>More
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Frogs hibernate because they are ectotherms.
In winter, their body temperature becomes lower due to the influence of the outside temperature. When the body temperature is relatively low, their vital activities are inhibited. As a result, they hibernate to reduce their energy consumption and survive the winter. >>>More
Rest assured, there is no big problem, it is a premature beat. There is no major danger. >>>More