Anatomy Of Eye-note 5

Question 1

Cornea

Answer 1

Transparent membrane on front of the eye. Begins process of seeing by focusing light onto retina. 5 layers to it

Question 2

Sclera

Answer 2

White of eye

Question 3

Choroid

Answer 3

Middle layer of eye. Co atone several layers of blood vessels which support other parts of eye

Question 4

Ciliary body

Answer 4

Ring of tissue between iris and choroid muscles and blood vessels that changes the shape of the lens

Question 5

Iris

Answer 5

Colour of eye. Changes amount of light let in by alternating pupil size

Question 6

Pupil

Answer 6

Black part of iris that changes size in response to light

Question 7

Lens

Answer 7

Behind iris, second component of focusing light rays

Question 8

Retina

Answer 8

Thin lining, light sensitive cells convert image to electronic impulses

Question 9

Fovea (yellow spot )

Answer 9

Small part of retina, many cells which allow colour vision

Question 10

Blind spot

Answer 10

Optic disk where optic nerve fibres exit the eye and where there is no light sensitive cells

Question 11

Vitreous humour

Answer 11

Jelly matter between lens and retina

Question 12

Aqueous humour

Answer 12

Clear fluid between in and out chambers. Important in controlling pressure inside eye and giving shape

Question 13

Conjunctiva

Answer 13

Mucous on inside of eyelid and surface of eyeball