Which of the Following Statements About the Cardiac Cycle Is

question 75

Multiple Choice

Which of the following statements about the cardiac cycle is true?

• A)The duration of systole is greater than that of diastole
• B)During isovolumetric ventricular relaxation, blood flows from the atria into the ventricles
• C)Closure of the atrioventricular valves occurs at the onset of systole
• D)Both the duration of systole is greater than that of diastole and during isovolumetric ventricular relaxation, blood flows from the atria into the ventricles are true
• E)Both during isovolumetric ventricular relaxation, blood flows from the atria into the ventricles and closure of the atrioventricular valves occurs at the onset of systole are true

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Definitions:

Rate Determining Step

The slowest step in a chemical reaction mechanism that determines the overall rate of reaction.

Exothermic Reaction

A chemical reaction that releases energy in the form of heat or light, often making the surroundings warmer.

Alkyl Substituents

Groups of atoms attached to main molecules consisting of carbon and hydrogen atoms arranged in a chain, modifying the molecules' properties.

Carbocationic Center

A positively charged carbon atom within an organic molecule, characterized by a lack of a full octet of electrons.