Muscular Introduction Check for Understanding

Select all of the following choices which are functions of the muscular system.

• Facilitating movement
• Generating heat
• Maintaining posture
• Protecting internal organs
• Balancing body fluid

Muscles work in pairs to produce a range of movement and force.

• True
• False

A synergist is the main muscle responsible for movement.

• True
• False

Contractability is the muscle cells’ ability to unforcefully shorten.

• True
• False

__________ movement cannot be controlled by conscious thought.

• A. Voluntary
• B. Involuntary
• C. Vigorous
• D. Non-vigorous

Which of the following muscle types can be found in the lining of organs?

• A. Cardiac
• B. Smooth
• C. Skeletal
• D. Cartilage

Select all the following tissues which are striated.

• Cardiac
• Cartilage
• Ligaments
• Skeletal
• Smooth

Skeletal muscle contractions are voluntary and stimulated by the central nervous system.

• True
• False

Elasticity is the muscle’s ability to return to its original length when relaxed.

• True
• False

Striated muscle has a striped appearance.

• True
• False