Muscular System

Match each term with its description: smooth, skeletal, tendon, cardiac, muscle, brain, nerve.

• Voluntary

• Muscles that help a human move.

• Skeletal

• Muscles in a person's chest.

• cardiac

• Muscles located in the hollow organs.

• Smooth

• Muscles break down food through the system.

• digestive

• A person has to think about moving these muscles.

Which statement about cardiac muscles is true?

• Cardiac muscles get weaker with age.

• Cardiac muscles work without a person having to think about it.

• Cardiac muscles are found in the arms.

Skeletal muscles are ________ muscles, meaning the brain sends a message along the nerves in the body to make a muscle move.

• voluntary

• involuntary

• cardiac

• smooth

Muscles get bigger when a person exercises. True or False?

• True

• False

What is the main purpose of a tendon?

• To attach muscles to bones

• To help a muscle contract

• To help a muscle relax

• To help digest food

“They come in pairs, so one muscle contracts to pull on the bone to make it shorter it is attached to so the bones move closer together.” What is the meaning of contracts, as used in the quote?

• A. A written agreement

• B. Decrease in size

• C. Enter into an agreement

• D. Decrease in number

This muscle is only found in your heart.

• Skeletal
• Smooth
• Rough
• Cardiac

These muscles are found in hollow organs, like the stomach.

• Skeletal

• Muscular

• Smooth

• Cardiac