Parasympathetic Innervation to the Heart

question 64

Multiple Choice

Parasympathetic innervation to the heart:

• A) involves the vagus nerve
• B) decreases the rate at which the pacemaker potential reaches threshold
• C) decreases the strength of ventricular contraction
• D) all of these
• E) involves the vagus nerve and decreases the strength of ventricular contraction

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Definitions:

Control Over Behavior

The ability of an individual to regulate actions and reactions in accordance with societal norms or personal goals.

Healthy Self-Concept

A positive perception or image of oneself, reflecting confidence and an understanding of one's strengths and weaknesses.

Number 1

Often represents the first in a series or a winner in a competition; in mathematics, it's the natural number that follows 0 and precedes 2.