百度试题 结果1 题目22)An average human heart beats 60 times per minute. If an average person lives to the age of 75, how many times does the average heart beat in a lifetime? -6 相关知识点: 试题来源: 解析 -6 反馈 收藏
The heart contains electrical "pacemaker" cells, which cause it to contract — producing a heartbeat. "Each cell has the ability to be the 'band leader' and [to] have everyone follow," Phillips said. In people with an irregular heartbeat, or atrial fibrillation, every cell tries to be ...
a heart condition.somebody’s heart rate(=the number of times someone’s heart beats per minute)Your heart rate increases as you exercise.adjectiveshealthyEating oily fish can help maintain a healthy heart.a bad/weak heart(=an unhealthy heart)The effort proved too much for her weak heart. ...
During exercise or intense emotion the human heart rate can increase to 200 beats per minute. Thus, in a life span of seventy-five years, with everyday stresses and emotions, a human heart may beat more than 3 billion times. The heart pumps approximately 100 milliliters per beat. In ...
The cardiac time (heart rate (HR), beats per minute (BPM), the standard deviation of the normal-to-normal (NN) intervals (SDNN), the mean squared differences in the successive N-N intervals (rMSSD), and the percentage difference between adjacent normal interbeat (R-R) intervals>50 (pNN...
heart and then pumped into the blood stream. It is the atria that draw the blood from the lungs and body, and the ventricles that pump it to the lungs and body. The output of each ventricle per beat is about 70 ml, or about 2 tablespoons. In a trained athlete this amount is about...
【The heart pumps the equivalent of 5,000 to 6,000 quarts of blood each day.】5. How many breaths do you average each day?【12-16 beats per minute is average so…… 720-960 beats per hour, and then 17,280-23,040 per day】6. How many times does the average heart beat in a ...
at the rate of about 70- 72 per minute at rest. Every time the heart pumps blood into arteries, they distend rhythmically. This rhythm or wave can be felt and counted in the superficial and radial arteries near the wrist (Fig. 1.13). This count represent the count of th...
becausetheyhaveonly6beatsperminute,beatingabout560 milliontimesthroughouttheirlives.Surprisingly,exceptfor humans,theheartbeatrateofallmammalsisessentiallythe same,about730milliontimes,whilethetotalnumberof heartbeatsinhumanlifeisabout2billion500millionto3 billiontimes. 1daysperspirationcanamountto10litres Peopleswea...
or breast bone. It beats approximately 72 times per minute, and pumps oxygenated blood to different parts of the body. The pumped blood also removes waste products from the body. Observing a diagram of the heart, as the one here, will help comprehend the different parts of the human heart...