The eye

Question 1

cornea - description

function

Answer 1

transparent coating on the front of the eye

protects the eye, refracts light entering the eye

Question 2

pupil - description

function

Answer 2

central hole in the iris

allows light to enter the eye

Question 3

iris - description

function

Answer 3

coloured ring of muscle tissue

alters pupil size by contracting or relaxing

Question 4

lens - description

function

Answer 4

transparent biconcave lens

focuses light clearly onto the retina

Question 5

ciliary body - description

function

Answer 5

ring of muscle tissue

alters the shape of the lens

Question 6

suspensory ligaments - description

function

Answer 6

ligament tissue

connects the ciliary muscle to the lens

Question 7

optic nerve - description

function

Answer 7

nervous tissue

carries nerve impulses to the brain