The sinoatrial node is commonly referred to as the pacemake of the heart. Located in the atrium, the SA node usually "fires" 60 to 100 times a minute which induces the heart to beat. Heart rhythms that start from this node are known as sinus rhythms.
The heart also has a atrioventricular pacemaker that "fires" at 40 to 60 beats per minute. If the sinoatrial node fails to function, the AV node will begin to work. Heart rhythms that are generated from this node are known as junctional rhythms.
Finally, as a last resort, there is a ventricular pacemaker. This "fires" at a rate of 20 to 40. These rhythms are described as idioventricular or "escape" rhythms. People whit these heart rhythms most likely will be experiencing severe signs and symptoms of poor perfusion.
Pacemaker cells control the heart rate of the heart.
Sinoatrial node
Artificial cardiac pacemaker was created in 1959.
An Artificial Pacemaker basically regulates the rate of the heart beat depending on the needs of the body.
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wandering baseline
John hopps invented the first external pacemaker. Later Earl Bakken improved this pacemaker by making it battery powered. And then Wilson Greatbatch invented the first implantable pacemaker!
An artificial pacemaker works by detecting changes in the heart's rhythm. If it detects a 'problem' - it delivers a shock to the heart's muscle - returning the heartbeat to a regular beat.
Artificial Pacemaker
Keeps the beats of your heart in correct rhythm
-in the 1930's Albert S. Hyman
artificial pacemaker
Replacement is required in order to replace the battery.
An artificial pacemaker