If Both the SA Node and the AV Node Fail

question 140

Multiple Choice

If both the SA node and the AV node fail, what would be the expected outcome of impulse rate within the heart?

• A)The heart is autorhythmic therefore it continually beats even after death because death is defined as a lack of brain waves.
• B)The sympathetic nervous system takes over and maintains normal heart rate.
• C)The vagus nerve takes over and maintains a normal heart rate.
• D)The rate would be 30- 40 beats per minute due to the concentration of pacemaker cells in the Purkinje fibers.
• E)The individual would be in heart failure or have a myocardial infarction due to the lack of a beating heart.

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Definitions:

Relative Deprivation

A perception or feeling that one is worse off relative to those with whom one compares oneself.

Promotion

The act of advancing someone to a higher position or rank, often associated with increased responsibilities and benefits.

Salary

Fixed regular payment, typically on a monthly or biweekly basis, made by an employer to an employee, especially professional or white-collar workers.

Relative Deprivation

The feeling of dissatisfaction or injustice from perceiving oneself as worse off compared to others.