Q. The number of action potentials generated by sino-atrial node (SAN) in a healthy human is ____ per minute.
A) 120–140
B) 28–30
C) 70–75
D) 100–110
Explanation
[Solution from source] The SA node is the pacemaker and normally generates 70–75 action potentials per minute. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.