First slide

Circulatory Pathways

Question

In an average healthy adult human, SAN can generate a maximum of ___________number of action potentials.

Very Easy

A

70-75 min^–1
B

20-25 min^–1
C

90-95 min^–1
D

40-45 min^–1

Solution

The SAN can generate the maximum number of action potentials, i.e., 70-75 min^–1, and is responsible for initiating and maintaining the rhythmic contractile activity of the heart.

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