General
Doug says our bodies work a lot like __________.
robots
We have these in our hands to help them move our fingers.
strings OR rods
An eyeball being too short or too long can cause this.
blurry vision
When your pupil is larger, you can see better here.
In the dark
The hole-in-hand illusion works because our brain does this with the image from each eye.
combines them
Using this technique in science helps us learn about our bodies because we can see what's inside them.
dissection
The strings in our robot fingers represented _________ in our real hands.
tendons
Light enters our eyes through this.
pupil
These types of animals have pupils that get larger than ours for seeing in the dark.
nocturnal
Movement nerves are connected to our ______________.
muscles
Scientists haven't completely figured out how this body part works, and dissection doesn't necessarily help in this case.
The brain
Without these, we would be a non-moving skeleton.
muscles
If the cornea lens is ______, you would only be able to see light or dark.
cloudy
Only animals have this type of retina that helps them see better at night.
reflective
Sensory nerves are connected to our __________.
senses
Adults have 206 of these. Mystery Science called them "rods".
bones
Without these, we would be a pile or glob of muscles.
bones
This is the part of the eye that gives us color.
iris
Red eye in human photos is caused by our ______ _______ in the back of our eyes.
blood vessels
Our brains take information from our senses, and makes ______________ about whether or not to send a movement command to our muscles.
decisions
These are the places where our bodies can bend/move.
joints
To help see an example of the tendons in our hands, the video using a piece of raw ______________ to help us see something similar.
chicken
During the index card eye model, the image of the window was ______-_____ on the retina/index card.
upside-down?
When we go from light to dark, our pupils __________, or get larger, to let more light in.
dilate
Why does it take time for our hand to grasp the ruler in this experiment?
Our brains have to take messages from our sensory nerves and decide what to do with that information. The decision means the brain also has to send a command to movement nerves for our bodies to take action.