Our Bodies
How many joints are in one finger?
3
What are the three main parts of an eye when you are looking straight at it?
White, iris, pupil
We would still be ourselves if we had a different brain.
(True/False)
False
(Without our own brain, we wouldn't have our own memories or experiences.)
What are the parts of your body that move called?
(Knee, elbow, fingers, wrists, neck, etc.)
Joints
What is the clear lens called that is on top of your eye?
Cornea lens
Our brains make several choices without us even being aware they are happening.
(True/False)
True
What three things are used in the movement of a joint? (Not counting the brain signal)
Bone, muscle, tendon
What do the cornea lens and retina do?
The cornea lens reflects what we see as a picture on the retina. The picture on the retina is what our brain sees.
Our bodies sense and feel things through our _____, which send signals to our brain.
Nerves
How does the moving of a joint work?
The muscle controls the tendon, which is connected to the bone. The muscle moves the tendon, the tendon moves the bone, which causes the joint to move.
Animals that are nocturnal can see better in the dark than us because their pupils are smaller than ours.
(True/False)
False
(Their pupils can get bigger than ours!)
Why can you see a hole in your hand with the tube experiment?
Because each eye is reporting what it sees to the brain. One eye sees your hand, the other eye sees through the tube.
Why do our pupils get larger when there is not much light, and smaller when there is a lot of light?
When there is not much light our pupils get bigger to allow more light to reach the retina. When there is a lot of light our pupils get smaller so that too much light doesn't reach the retina.