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Latest Sinoatrial node Stories

Understanding The Link Between Age And Decreased Maximum Heart Rate
2013-10-15 07:29:52

As we age, our maximum heart rate (maxHR) decreases - limiting the performance of aging athletes. Decreased maxHR is also a leading cause for nursing home admittance for otherwise-healthy elderly individuals who no longer have the physical capacity required for independent living.

2011-12-27 11:48:33

Arrhythmia is a potentially life-threatening problem with the rate or rhythm of the heartbeat, causing it to go too fast, too slow or to beat irregularly.

2011-09-09 13:29:04

The heartbeat is the result of rhythmic contractions of the heart muscle, which are in turn regulated by electrical signals called action potentials.

2011-03-09 14:40:50

Pacemaker cells in the sinoatrial node control heart rate, but what controls the ticking of these pacemaker cells?

2010-08-17 17:05:33

New research in the Journal of General Physiology helps explain how the body's "flight-or-fight" response is mediated.

2010-07-06 13:39:24

Scientists at The University of Manchester have solved a mystery connected with why people die from sudden cardiac arrest during sleep – potentially saving thousands of lives.

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2009-04-09 13:29:39

Artificial heart pacemakers have saved and extended the lives of thousands of people, but they have their shortcomings – such as a fixed pulse rate and a limited life. Could a permanent biological solution be possible?


Word of the Day
definiens
  • The word or words serving to define another word or expression, as in a dictionary entry.
The word 'definiens' comes from the Latin word 'definire', 'to define'.
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