(Quiz #3) Body Movements

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

This type of muscle is attached to your bones

• Skeletal muscle

• Smooth muscle

• Rough muscle

• Cardiac muscle

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

• Bicep contracts to bend arm at the elbow while the tricep relaxes.

• Bicep contracts to bend arm at the elbow

• Tricep contracts to bend arm at the elbow

• Tricep contracts to bend arm at the elbow while the bicep relaxes.

Skeletal muscles always work in _____

• pairs

• groups of 3

• bones

• joints

These muscles are found in your organs, like your stomach, bladder, and intestines.

• Skeletal muscle

• Smooth muscle

• Rough muscle

• Cardiac muscle

This type of muscle is only found in your heart.

• Skeletal muscle

• Smooth muscle

• Rough muscle

• Cardiac muscle

When your heart _________ it squeezes blood out of the heart. When your heart _________ it fills with more blood.

• relaxes, contracts

• contracts, relaxes

Which of the following actions is an example of skeletal muscle movement? Select all that apply.

• Stomach churning and breaking down food

• Raising your hand

• Heart beating

• Kicking a soccer ball

Movements that you choose to control

• Cramp
• Voluntary
• Strain
• Involuntary

Movements that you cannot control

• Strain
• Sprain
• Voluntary
• Involuntary