Chapter 3: The Muscular System

Poll

Before we read chapter 3, answer this poll: Can a skeleton chase you? We are going to find out in chapter 3!

• Yes, a skeleton can chase me!

• No, a skeleton can't chase me!

Multiple Choice

What do muscles do?

• Muscles make red blood cells to transport oxygen.

• Muscles are tightened to make the bones move.

• Muscles give our body support.

Fill in the Blank

There are about ____ muscles in the human body.

Multiple Choice

We use muscles to smile, chew food, and breathe.

• TRUE

• FALSE

Multiple Choice

What is the difference between voluntary and involuntary muscles?

• Voluntary muscles require more oxygen than involuntary muscles.

• There are more voluntary muscles in your body than involuntary muscles.

• Voluntary muscles are ones that you can move and involuntary muscles work automatically.

Poll

Your body uses _____ muscles to make your stomach digest food.

• voluntary

• involuntary

Poll

Where are involuntary muscles located?

• Heart and Stomach

• Legs and Arms

• Hands and Feet

Multiple Choice

What parts of your body make your bones move?

• bones

• nerves

• muscles

Multiple Choice

What is the main idea of chapter 3?

• Muscles allow movement and there are 2 kinds of muscles, voluntary and involuntary.

• About half of your body weight is from muscles.

• The muscles in your heart are involuntary muscles and work automatically.