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人们的心脏不停地按一定规律进行收缩、舒张,形成血液循环,保证各个器官包括心脏本身的血液供应,使机体得到足够的营养和氧气,保持一定的生理功能。当心脏舒张和收缩时,心脏体积大小不断变化,像心脏在跳动,这就是所谓心跳。心脏必须有节律地跳动。心跳节律就是心律。而心率和心律的含意是不同的。心率是指心脏每分钟跳动的次数,以次/分来表示。正常成人心率每分钟60～100次,一般与脉搏一致。健康人的心脏是按一定的节律和速率进行跳动(也叫搏动)。心脏
People’s heart constantly according to a certain law of contraction, relaxation, the formation of blood circulation, to ensure that all organs, including the heart’s blood supply, the body get enough nutrition and oxygen, to maintain a certain physiological function. When the heart dilates and contracts, the size of the heart changes constantly, like the heart beating, which is called heartbeat. The heart must rhythmically beat. Heart rate rhythm is the heart. The meaning of heart rate and heart rate is different. Heart rate is the number of heart beats per minute, expressed as times / minutes. Normal adult heart rate 60 to 100 beats per minute, generally consistent with the pulse. The heart of healthy people is beating (also known as beating) at a certain rate and rhythm. heart