The brain, the skeleton, the muscles, and the lungs are examples of main organs belonging to what we call...
Body systems
What is the main function of the cerebrum?
Voluntary actions.
What is the main function of the cerebellum?
Balance, movement, and coordination
What is the main function of the brain stem?
Involuntary actions
Where does my brain sit?
It sits in our skull.
What does my nervous system do?
It passes messages between my body and my brain.
What does our brain use to do much of its job?
Our brain uses our nervous system to do much of its job.
What does our nervous system use to pass messages?
Our nervous system uses a highway of nerves to pass messages.
What happens if a friend taps our arm in the game of tag?
Nerves in my arm send messages to my brain and my brain sends a message to my legs to run.
Which one is faster: a car or the messages exchanged between my brain and my nerves?
Messages exchanged between my brain and my nerves can go up to five times faster than a car on a highway.
TRUE OR FALSE: our brain stops working when we sleep.
FALSE: our brain never stops working. It works even when we sleep.
