Nervous system- eyeball

Question 1

sclera

Answer 1

the eye’s white outer protective coat, normally seen as the “white of the eye

Question 2

iris

Answer 2

the colored part of the eye

Question 3

pupil

Answer 3

the black part of the eye in the middle of the iris. It constricts or dilates according to the amount of light passing through it

Question 4

Lens

Answer 4

he transparent disc (with both sides being convex) immediately behind the iris and pupil.

Question 5

aqueous humor

Answer 5

he transparent fluid (with a consistency similar to water) that
circulates behind the cornea and in front of the lens

Question 6

vitreous humor

Answer 6

the material (like transparent jelly) that fills the eyeball between
the lens and the retina

Question 7

rods

Answer 7

more numerous, spread out over the entire retina with more toward the outer
edge, respond to low levels of light

Question 8

cones

Answer 8

far fewer, concentrated around the retina’s center, respond to color and to details

Question 9

optic nerve

Answer 9

The “cord” of nerve cell connections that pass from the eyeball to
destinations throughout the brain