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eyeball parts

Sheep eye dissection parts/eyeball quiz

QuestionAnswer
the clear, dome-shaped tissue covering the front of the eyes cornea
the colored part of the eye that controls how much light enters the eye by changing the size of the pupil iris
a crystalline structure just behind the iris. it focuses light on the retina lens
nerve that transmits electrical impulses fromt her etina to the brain optic nerve
the opening int he cente rof the iris, changes size as the amount of light changes pupil
sensory tissue that lines the back of the eye, contains millions of rods and cones that conver light rays into electrical impulses that are relyaed to the brain via the optic nerve retina
thick, transparent liquid that fills the center of the eye, is mostly water and gives the eye its form and shape vitreous or vitreous humor
How do you find which is your dominant eye? make a circle, look at an object, then close each eye and which one you can still see the object is dominant
how many eye muscles do humans have six
what is the point at which the retinal nerve tissue connects to the optic nerve? the blind spot
what color is the lens in a living organism? it's clear/transparent
why does the lens have to be flexible? so it can change shape, focusing on objects close and far away
why does the lens and cornea have to be transparent? to allow the passage of light
what is the shape of the sheep's cornea? elliptical
wha tis the shape of a human's cornea? circular
why does the retina have to be smooth? to best reflect light
where is the eye's blind spot? where the retinal nerve tissue connects to the optic nerve
STUDY DIAGRAM!!!
Created by: Tsarmina