Vocab 1
a test used to discover new information about a question
experiment
a part of the body that attaches to bones and allows the body to move
muscle
Why does your pupil get bigger when the room is dark?
a. to allow more light to enter your eye
b. to give your eyes a rest
c. to allow less light to enter your eye
d. none of the above
a. to allow more light to enter your eye
Movement nerves take messages from your b____ to your m____.
brain
muscles
dissect
a part of the body that receives, processes, and responds to signals
brain
What happens if the eyeball is too short or too long?
Your vision would be blurry.
(You need glasses or contacts.)
Sensory nerves take messages from your s_____ to your b_____.
senses
brain
the brain and all the nerves in the body
nervous system
something that tricks or confuses the brain
illusion
What would happen if your cornea lens were cloudy instead of clear? What would you see?
You would see light/dark shapes of objects.
The t_____ connects the m____ to the b____. Your m____ pulls on the t_____ which moves the b____.
tendon, muscle, bone
muscle, tendon, bone
something that tricks or confuses your brain
illusion
the parts of the body that carry signals from the brain to muscles
movement nerves
What would happen if you had no bones? Why?
You would not be able to move!
1. Bones are the structures/support of your body.
2. Muscles need something to pull on bones.
What are the 3 main jobs of the brain?
Make ______.
Take in ______.
Control your ______.
decisions
information
muscles
a group of things that affect each other and function as a whole
system
the parts of the body that carry signals from the senses (eyes, ears, mouth) to the brain
sensory nerves
Why does it look like you have a hole in your hand when you try the hole-in-hand illusion?
One eye sees a hole.
One eye sees a hand.
Your brain combines the two.
When you did the "Reaction Time" activity what happened?
The eyes sent messages to the brain saying, "Here is a ruler."
The brain made a decision to grab the ruler.
The brain sent a message to the movement nerves, "Grab the ruler."