Lesson 2.2

This muscle tissue is only found in the heart.

• Skeletal

• Smooth

• Cardiac

These are the muscles attached to your bones.

• Skeletal

• Smooth

• Cardiac

These are the muscles found in your organs (like your stomach).

• Skeletal

• Smooth

• Cardiac

Which of the following is NOT a function of the muscular system?

• to allow for movement

• to provide stability

• to regulate body temperatures

• to store calcium

Which of the following functions can be under voluntary control?

• blinking

• breathing

• digesting food

• pointing

Which of the following muscles are voluntary muscles?

• skeletal muscles

• cardiac muscle

• smooth muscles

What happens when a muscle contracts?

• The muscle pushes on another bone.

• The muscle shortens.

• The muscle pushes on another muscle.

• The muscle gets longer.

The main purpose of the muscular system is to....

• Transport nutrients, materials, and gases

• Move the body

• Break down food for nutrients

• Help with gas exchange

Which of the following statements best describe how the arm bends at the elbow?

• The biceps contract to bend the elbow while the triceps relax.

• The biceps contract to bend the elbow

• The triceps contract to bend the elbow

• The triceps contract to bend the elbow while the biceps relax.

Skeletal muscles always work in _____

• pairs

• individuals

• bones

• joints