What Is the Function of the Atrioventricular Node

question 119

Multiple Choice

What is the function of the atrioventricular node?

• A) to excite the left and right atrium
• B) to control the heart rate
• C) to prevent the atria and ventricles from contracting simultaneously
• D) to repolarize the heart after systole

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Definitions:

System of Equations

A set of two or more equations with the same variables, which are solved together.

Method of Substitution

A method involving the resolution of equation systems through isolating a variable in one equation and then inserting that solution into another equation.

System of Equations

A set of equations with the same variables, where the solution must satisfy all equations simultaneously.

Hyperbola

A type of smooth curve lying in a plane, consisting of two branches, which are mirror images of each other, and which open away from each other.