The Atrioventricular (AV)node Delays the Conduction Impulse from the Atria

question 1

Multiple Choice

The atrioventricular (AV) node delays the conduction impulse from the atria (0.8-1.2 seconds) for which of the following reasons?

• A) To limit the amount of blood that fills the ventricle from the atria
• B) To provide time for the ventricles to fill during diastole
• C) To limit the number of signals the ventricles receive in some rhythms
• D) To allow the atria to rest between signals

Understand the concept and calculation of cumulative percent frequency.

Recognize characteristics of data distribution, including skewness.

Distinguish between frequency, relative frequency, cumulative frequency, and percent frequency.

Calculate and interpret percentages from a crosstabulation.

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