What Is the Effect of the Release of Norepinephrine by the Sympathetic

question 5

Multiple Choice

What is the effect of the release of norepinephrine by the sympathetic nervous system?

• A) Smooth muscle and cardiac muscle relax.
• B) Smooth muscle and cardiac muscle are activated and increase the force of their muscle contractions.
• C) Smooth muscle relaxes, while cardiac muscle has increased contractile force.
• D) Cardiac muscle relaxes, while smooth muscle is stimulated to increase activity.

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Definitions:

Run

To move at a speed faster than a walk, continually propelling oneself forward with legs.

Motor Neurons

Nerve cells that initiate and control the movement of muscles.

Central Nervous System

Comprised of the brain and spinal cord, it is the primary information processing center in the body and controls most functions of the body and mind.

Autonomic Nervous System

The part of the nervous system that controls involuntary actions of the body, such as heart rate and digestion.