What does cardiac pacemaker mean?

Definitions for cardiac pacemaker
car·diac pace·mak·er

Here are all the possible meanings and translations of the word cardiac pacemaker.

Princeton's WordNet

  1. pacemaker, cardiac pacemaker, sinoatrial node, SA nodenoun

    a specialized bit of heart tissue that controls the heartbeat

Wikipedia

  1. Cardiac pacemaker

    The contraction of cardiac muscle (heart muscle) in all animals is initiated by electrical impulses known as action potentials. The rate at which these impulses fire controls the rate of cardiac contraction, that is, the heart rate. The cells that create these rhythmic impulses, setting the pace for blood pumping, are called pacemaker cells, and they directly control the heart rate. They make up the cardiac pacemaker, that is, the natural pacemaker of the heart. In most humans, the concentration of pacemaker cells in the sinoatrial (SA) node is the natural pacemaker, and the resultant rhythm is a sinus rhythm. Sometimes an ectopic pacemaker sets the pace, if the SA node is damaged or if the electrical conduction system of the heart has problems. Cardiac arrhythmias can cause heart block, in which the contractions lose any useful rhythm. 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.

Freebase

  1. Cardiac pacemaker

    The contraction of heart muscle in all animals with hearts is initiated by electrical impulses. The rate at which these impulses fire controls 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 other animals, a mechanical device called an artificial pacemaker may be used after damage to the body's intrinsic conduction system to produce these impulses synthetically. The pacemaker is located in the wall of the right atrium.

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Numerology

  1. Chaldean Numerology

    The numerical value of cardiac pacemaker in Chaldean Numerology is: 1

  2. Pythagorean Numerology

    The numerical value of cardiac pacemaker in Pythagorean Numerology is: 4

Images & Illustrations of cardiac pacemaker

  1. cardiac pacemaker

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