Use the following answer code to indicate which factor involved in the initiation and spread of cardiac excitation is being identified.
-Has the fastest rate of pacemaker activity.
A)SA node
B)AV node
C)Bundle of His and Purkinje system
D)Gap junctions

Question

Quizplus · Accepted Answer

The factor being identified is the SA node, which is known for having the fastest rate of pacemaker activity.

Use the Following Answer Code to Indicate Which Factor Involved