Explain how stroke volume, and cardiac output change when an individual start exercising as the heart rate increases. (Explain both cardiac output and stroke volume and the factors that affect them when answering this question). a. What "extrinsic agents" increase o...
Tachycardia: Heart rate over 100 ( as high as 240 ) Beats per minute.───心搏过速: 心搏过速指心搏速率每分钟超过100次 ( 最高可达240次 ) 的情况. We all know that when we exert ourselves our heart rate increases.───我们都知道太卖命了会导致心跳加速。 We all know that when we ...
A.Declines in a sudden. B.Suddenly increases. C.Stops for a moment. D.Is disturbed in no time. 相关知识点: 试题来源: 解析 反馈 收藏
heart rate是什么意思 英 [hɑːt reɪt]；美 [hɑːrt reɪt]。心率。相似短语：heart rate 心搏率，心率。maximal heart rate 最高心搏率。basal metabolism heart rate 基础代谢心率。相似短语：basal fetal heart rate 基础胎儿心率heart rate speed counter 心率测速计baseline fetal heart rate 胎...
Sudden cardiac arrest occurs, as the name implies, suddenly and usually without any advanced warning. It is triggered by a disruption of the electrical currents that keep the heart beating. This disruption, called an arrhythmia, stops the heart from pumping blood to the brain, lungs and other ...
With heart failure, blood moves through the heart and body at a slower rate, and pressure in the heart increases. As a result, the heart cannot pump enough oxygen and nutrients to meet the body's needs. The chambers of the heart respond by stretching to hold more blood to pump through ...
Your heart rate generally decreases while you sleep. If you notice that it increases during sleep, it can signalsleep apneaor another underlying cause. If a problem like a dangerous arrhythmia is causing a high heart rate, it can be fatal—and possibly occur without warning. ...
At the same time, the heartbeat sensor collects the data for the heartbeat rate. The maximum pressure at which the pulse data measured by the sensor increases suddenly is stored as the systolic pressure of the user. After that, the pressure value data collected by the heartbeat rate sensor...
Palpitations can be due to an arrhythmia, usually due to aabnormally rapid heart rate. When the pulse or heart rate is over 100 beats per minute, it is called tachycardia. One can have sinus tachycardia where the heart rate increases in a normal way due to signals from the body. ...
Heart spasm is when a coronary artery suddenly tightens and stops blood flow to part of the heart.What increases my risk for a heart attack?High cholesterol, diabetes, or high blood pressure Smoking cigarettes or chewing tobacco A family history of heart attack Being a man older than 55 Being...