Lehigh Acres, FL
A 27-year-old male asked:
where does the electricity of the sa node in the heart come from?does it self spark?
2 doctor answers • 3 doctors weighed in
Dr. Budi Bahureksa answered
Cardiology 31 years experience
The brain: the signal comes from the brain --
3493 viewsAnswered >2 years ago
Dr. Calvin Weisberger answered
Cardiology 51 years experience
Nodal activation: The 'electricity' comes from the gradients of Na, K, across the membranes and changes to trigger these. Read the following for a general idea of how it works....
http://en.wikipedia.org/wiki/Sinoatrial_node
3493 viewsReviewed >2 years ago
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Last updated Oct 24, 2017
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