3. This system includes your brain, spinal cord, sensory organs, & nerves.
A.) respiratory system
B.) immune system
C.) nervous system
D.) digestive system L W

5. This bundle of nerves extends from the brain down along the back
A.) sensory organ
B.) nerve
C.) brain stem
D.) spinal cord L W

7. Where are nerves located?
A.) in your hands
B.) in your arms
C.) in your feet
D.) all of the above L W

9. A thin, wire-like body part that carries information
A.) nerve
B.) hair
C.) spinal cord
D.) brain L W

11. The command center of the nervous system is the …
A.) spinal cord
B.) brain
C.) nerves
D.) sensory organs L W

13. A body part associated with the senses
A.) lungs
B.) sensory organs
C.) blood
D.) brain L W

15. A quick, unplanned response
A.) reaction
B.) senses
C.) reflex
D.) nerves L W

17. Blinking is reflex because:
A.) You decide when you want to blink
B.) You can stop a blink if you choose to
C.) It happens without you having to think about it
D.) all of the above L W

19. Which of the following is an intentional reaction?
A.) sneezing
B.) catching a ruler
C.) breathing
D.) shivering L W

21. Opening a door is an intentional reaction because . . .
A.) You decide when you want to open the door.
B.) You can stop opening the door if you choose to.
C.) You have to think about the action to make it happen.
D.) All of the above L W

23. Which of the following is NOT an intentional reaction?
A.) pulling away from a hot stove
B.) sending a text
C.) throwing a baseball
D.) doing a cartwheel L W

25. How are your senses involved in catching a ball?
A.) Your eyes see the ball and send a message to your brain
B.) Your nose can smell the ball
C.) Your ears hear the ball in the air
D.) Your eyes blink when you see the ball. L W

27. A.) your bones move B.) your joints move D.) none of the above
What happens after your sensory organs send messages through your nerves to your brain?
A.) your bones move
B.) your joints move
C.) Your brain sends messages through nerves to your muscles
D.) none of the above L W

29. After receiving a message from your brain, how do your muscles help you catch a ball?
A.) muscles relax
B.) muscles bend
C.) muscles push
D.) muscles move my bones L W

31. How do your bones help you to catch a ball?
A.) Your bones contract
B.) Your bones loosen
C.) Your bones send a message to your hands
D.) Your joints move your
bones to close around the ball L W

32. Congratulations!
Thank you for playing!
Correct