Muscular System

What is an example of an involuntary muscle? 

• Heart
• Arms 
• Legs
• Shoulders

what is an example of a voluntary muscle? 

• Stomach
• Liver
• Esophagus 
• Calf Muscles

About what percentage of your body weight is muscle?

• 70-80%
• 45-50%
• 35-40%
• 20-25%

What muscle surrounds the heart?

• Skeletal Muscle 
• Cardiac Muscle 
• Smooth Muscle 
• Heart Muscles

About how many bones are in your body?

• 40
• 600
• Over 9000
• 400

What is the job of the skeletal muscle's? 

• To Help You Breathe
• To Move Your Bones
• To Produce Carbon Dioxide 
• To Keep You Warm

Muscles which move bones act in pairs. What does this mean?

• When your left arm moves, your right arm does the same.
• When you tighten your foot, your hand relaxes.
• When you tighten one muscle, the partner muscle relaxes.
• The muscles are the organs that move the skeleton and the rest of your body.