anatomy of the eye

Question 1

what does the eye do

Answer 1

It receives light and transforms it into a nerve impulse. Nerve impulse is carried by the optic nerve and cranial nerves to the area of the brain responsible for visual processing.

Question 2

Lens

Answer 2

The lens brings the image to focus on the retina.

Question 3

Cornea

Answer 3

its transparent to let light through it.

Question 4

pupil

Answer 4

The pupil of the eye is a portal which admits and regulates the flow of light to the retina.

Question 5

Vitreous humour

Answer 5

its a clear gelatinous liquid that occupies the back of the eye. It exerts pressure on the eye to keep its shape and holds the lens and retina in place.

Question 6

Retina

Answer 6

it is a membrane composed of receptor cells that are sensitive to light. It turns light waves into nerve impulses using rodes and cones, which are composed of sensory nerves. Cones detect colour and rods detect shape.

Question 7

Stimulus —– recipient —– transformer —– conductor —- Analyser

Answer 7

Light —– eye —– retina —– optic nerve —– brain