In Third-Degree AV Block,the Site of the Block Is Either

question 18

Multiple Choice

In third-degree AV block,the site of the block is either the

• A)sinus node or the internodal tracts.
• B)AV node or the Purkinje fibers.
• C)bundle branches or the AV node.
• D)sinus node or the AV node.

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Definitions:

Vagus Nerve

The tenth cranial nerve that is responsible for many functions including heart rate, digestion, and mood control.

Effector Organ

An organ or tissue that responds to neural or hormonal signals, carrying out the final response or action.

Autonomic Ganglion

A collection of nerve cell bodies in the autonomic nervous system that act as relay points for transmitting neurological signals to organs.

Smooth Muscle

A type of muscle found in the walls of hollow organs like the intestines and blood vessels, characterized by its involuntary control and lack of striations.