Question

an area other than the sa node can become the pacemaker. this area is called a(n)

a heart block

b intrinsic conduction system

c ectopic pacemaker

d interventricular septum

Explanation:

• Heart block: It refers to a disruption in the electrical conduction of the heart, not an alternative pacemaker area.
• Intrinsic conduction system: This is the overall system that includes the SA node, AV node, etc., not a specific alternative pacemaker.
• Ectopic pacemaker: By definition, an area other than the normal SA node (which is the primary pacemaker) that can initiate the heartbeat is called an ectopic pacemaker.
• Interventricular septum: This is a structure that separates the two ventricles of the heart, not related to being a pacemaker.

Answer:

C. ectopic pacemaker