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・ Cardiac index
・ Cardiac Kidz
・ Cardiac magnetic resonance imaging
・ Cardiac magnetic resonance imaging perfusion
・ Cardiac marker
・ Cardiac monitoring
・ Cardiac muscle
・ Cardiac muscle cell
・ Cardiac nerve
・ Cardiac neural crest cells
・ Cardiac neural crest complex
・ Cardiac notch
・ Cardiac notch of stomach
・ Cardiac nursing
・ Cardiac output
Cardiac pacemaker
・ Cardiac Pacemakers, Inc.
・ Cardiac PET
・ Cardiac physiology
・ Cardiac plexus
・ Cardiac psychology
・ Cardiac reserve
・ Cardiac resynchronization therapy
・ Cardiac rhythm problems during space flight
・ Cardiac rhythmicity
・ Cardiac Risk in the Young
・ Cardiac shunt
・ Cardiac skeleton
・ Cardiac stimulant
・ Cardiac stress test


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Cardiac pacemaker : ウィキペディア英語版
Cardiac pacemaker

The contraction of heart (cardiac) muscle in all animals is initiated by electrical impulses known as action potentials. The rate at which these impulses fire control the rate of cardiac contraction or the heart rate. The cells that create these rhythmical impulses are called pacemaker cells, and they directly control the heart rate.
In humans, and occasionally in animals, a mechanical device called an artificial pacemaker (or simply "pacemaker") may be used after damage to the body's intrinsic conduction system to produce these impulses synthetically.
==Control==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Cardiac pacemaker」の詳細全文を読む



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