News tagged with pacemaker cells

Why caffeine can reduce fertility in women

Caffeine reduces muscle activity in the Fallopian tubes that carry eggs from a woman's ovaries to her womb. "Our experiments were conducted in mice, but this finding goes a long way towards explaining why drinking caffeinated ...

May 26, 2011
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Rhythm is it: Ion channels ensure the heart keeps time

The heartbeat is the result of rhythmic contractions of the heart muscle, which are in turn regulated by electrical signals called action potentials. Action potentials result from the controlled flow of ions into heart muscle ...

Sep 09, 2011
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