The heart is made up of many cardiomyocytes, or cardiac muscle cells, that contract in response to electrical stimulation to produce the heart beat. It is vitally important for the cardiomyocytes to coordinate their contractions, so that...
Heart The heart acts as a pump and maintains circulation of the blood by alternate concentration and relaxation of cardiac muscle (the myocardium). It generally contracts at
Pacemaker, electronic cardiac-support device that produces rhythmic electrical impulses that take over the regulation of the heartbeat in patients with certain types of heart disease. A healthy human heart contains its own electrical conducting system ca
After passing into the left ventricle, the blood is sent out to all parts of the body via the aorta artery. Answer and Explanation: The "pacemaker" of the heart is the A) SA node. The sinoatrial (SA) node, also known as the sinus node, is the heart's ...
pacemaker 显示所有例句 n. 1. (心脏)起搏器an electronic device that is put inside a person's body to help their heart beat regularly 2. 领跑人;领跑动物a person or an animal that begins a race quickly so that the other people taking part will try to copy the speed and run a fast race...
a注重身体健康是明智的 The attention health is unwise[translate] a我已经安装了心脏起博器,请不要用仪器对我的身体进行磁场扫描。非常感谢。这是我的起博器植入卡。 I already installed the heart to get up abundantly, please do not have to use the instrument to carry on the magnetic field scanning...
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A pacemaker is about 2 x 1.5 inches in size and weighs about an ounce. You might be able to see it under your skin, though some of the newer ones are too small to be seen. The heart has its own pacemaker that regulates the rate at which it beats. But some hearts don't beat reg...
* Coordinate electrical signaling between the upper and lower chambers of the heart. * Coordinate electrical signaling between the ventricles. Pacemakers that do this are calledcardiacresynchronization therapy (CRT,心脏再同步治疗)devices...
Electrical pulses keep the heart pumping at a steady rhythm, but sometimes it can get out of whack and beat too fast, too slow, or irregularly. This is calledarrhythmia, and if left untreated – especially in emergency situations – it can cause a range of complications and potentially be ...