The Timing of the Spread of the Action Potential from Atrium

question 42

Multiple Choice

The timing of the spread of the action potential from atrium to ventricle is controlled by

• A) the sinoatrial node.
• B) the atrioventricular node.
• C) modified muscle cells of the conducting system.
• D) systolic contractions.
• E) the ventricular mass.

---

Definitions:

Inductive Approach

A method of reasoning in which general principles are derived from specific observations.

Second Response

A subsequent communication or reply following an initial interaction or message.

No-Return Policy

A sales policy indicating that purchased items cannot be returned for a refund or exchange.

Abstract Nouns

Nouns that represent intangible concepts, qualities, or ideas, such as freedom, happiness, or love.