Introduction to the Muscular System

What type of muscle only occurs in the heart and creates the walls of the heart?

• cardiac

• smooth

• skeletal

True or False: Cardiac muscle is NOT striated.

• True

• False

True or False: Cardiac muscle is voluntary.

• True

• False

What type of muscle is found in the walls of hollow visceral organs?

• cardiac muscle

• smooth muscle

• skeletal muscle

True or False: Smooth muscle has striations.

• True

• False

True or False: Smooth muscle is not voluntary.

• True

• False

What type of muscle attaches to the bones of the skeleton?

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

True or False: Skeletal muscles can be voluntary.

• True

• False

The ability to receive and respond to a stimulus is called what?

• excitability

• contractibility

• extensibility

• elasticity

the ability to shorten forcibly when adequately stimulated is called what?

• excitability

• contractility

• extensibility

• elasticity