Muscle Fibers Quiz

What are the three main categories of muscle fibers?

• Cardiac, voluntary, and involuntary

• Cardiac, skeletal, and smooth

• Skeletal, tendinous, and smooth

• Cardiac, tendinous, and ligamental

Where is smooth muscle found in the body?

• Attached to bones

• Inside the heart

• In the walls of hollow organs

• Only in the lungs

What happens to the number of skeletal muscle fibers as a person ages?

• Increases

• Decreases

• Stays the same

• Doubles

Which muscle type is responsible for moving bones?

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

• Involuntary muscle

In terms of location, how do cardiac muscles differ from skeletal and smooth muscles?

• Cardiac muscles are only found in the heart.

• Cardiac muscles are located in bones.

• Cardiac muscles are located in the digestive system.

• Cardiac muscles are found in both the heart and blood vessels.

How do skeletal and smooth muscles differ in terms of fatigue?

• Smooth muscles fatigue faster than skeletal muscles.

• Skeletal muscles fatigue slower than smooth muscles.

• Skeletal muscles fatigue faster than smooth muscles.

• Neither type of muscle experiences fatigue.

Which of the three muscle categories are controlled involuntarily?

• Only cardiac muscles

• Only skeletal muscles

• Only smooth muscles

• Both cardiac and smooth muscles

Which of the four behavioral characteristics is unique to muscle tissue?

• Elasticity

• Extensibility

• Contractility

• Rigidity

What happens to the biceps if someone is given a weight too heavy to manage?

• The muscle extends beyond its limits.

• The muscle fails to contract, leading to injury.

• The muscle contracts but cannot lift the weight.

• The muscle shortens and then relaxes quickly.

Muscles represent what percentage of total body mass?

• 10-20%

• 20-30%

• 30-40%

• 40-50%