A 45-year-old member asked:
Help please? what is the threshold voltage in cardiac muscle?
1 doctor answer • 4 doctors weighed in
Cardiology 44 years experience
Depends: It depends on which cardiac muscle tissue. In the SA node, its around -50 mv. In subsidiary pacemakers it can be as much as -90 mv.
3.9k viewsReviewed >2 years ago
Last updated Sep 28, 2016
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