What percent of sensory receptors are located in the eye?
70%
What do Rods do?
-Respond to dim light
-Motion
-Peripheral vision
What is the other name for pink eye?
Conjunctivitis
Point to the Iris

How many Rods are there?
120 million
What do cones do?
-Respond to bright light
-color vision
What causes bloodshot eyes?
vessels in the surface of the white portion of the eye (sclera) become swollen
Point to the Sclera

How many cones are there?
6 to 7 million?
What is the transparent membrane that covers the whites of the eyes?
Conjuctiva
What causes blindness?
Damage to optic nerve or retina
One lab partner close your eyes for 15 seconds. The other lab partner should watch how their eyes change when they open them. What happens?
Their pupils get smaller with the light
How many rectus muscles rotate the eyeball?
4
What does the lens separate?
The internal eye into anterior and posterior segments
Why do people become color blind?
Genetics or other eye diseases to the optic nerve or retina
Move your eyeballs vertically. Which muscles allow you to do this?
What is the name of the fluids filled in the internal cavity?
Humors
What are the three tunics?
fibrous, vascular, sensory
What are the three most common colors color blind people cant see?
Blue Red and Green
Make a Triangle with your hands and put it infront of an object. Close one eye at a time back and forth and see which one shifts your view of the object. What does this mean about the eye that doesnt make the object shift?
It is your dominant eye