Answer the following question given this paragraph: A heart block refers to an interruption in the normal conduction pathway. The nomenclature for these is very straightforward. SA nodal blocks occur within the SA node. AV nodal blocks occur within the AV node. Infra-Hisian blocks involve the bundle of His. Bundle branch blocks occur within either the left or right atrioventricular bundle branches. Q: What do we call an interruption in the normal conduction pathway of the heart? A:

Choose from:
- heart attack.
- infarction.
- heartburn.
- heart block.
The answer is:
heart block