health

Which system controls the body's activities?

• Nervous System
• Digestive System
• Circulatory System
• Skeletal System

How does the brain send messages to your body?

• Impulses
• Brain waves
• Neutrons
• Neurons

What are the tiny air sacs in your lungs called?

• Alveoli
• Bubbles
• Ravioli
• Valves

______________ is what we breathe in to our lungs. 

• carbon dioxide
• oxygen
• sulfur
• sodium

_____________ carry blood away from the heart. 

• veins
• capillaries
• arteries
• alveoli

_____________ carries blood to the heart. 

• Veins
• Arteries
• Capillaries
• Alveoli

The _______________ connect the arteries and the veins. 

• Catepillars
• Connectors
• Capillaries
• Caps

The ______________ system is the framework of your body.

• Digestive 
• Excretory
• Muscular
• Skeletal

The ______________ system helps your bones move. 

• Muscular
• Skeletal
• Circulatory
• Digestive

Where does the digestive system start?

• Head
• Mouth 
• Eye
• Ear