Which of These Statements About the Sinus Node Is FALSE

question 27

Multiple Choice

Which of these statements about the sinus node is FALSE?

• A)It is the normal pacemaker of the heart.
• B)It has the fastest inherent rate of all the possible pacemaker sites.
• C)It is the slowest pacemaker of the heart.
• D)It fires at an inherent rate of 60-100 beats per minute.

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Definitions:

Amplitude

Stimulus intensity; in audition, roughly equivalent to loudness, graphed by the increasing height of a sound wave.

Loudness

Loudness is the subjective perception of the intensity of sound, often measured in decibels, influencing how sound is experienced.

Frequency

The number of occurrences of a repeating event per unit of time, often used in the context of waves or cycles.

Sensitivity To Sound

An increased responsiveness or discomfort to auditory stimuli, which can range from a mild annoyance to severe impact on daily functioning.