The eye for IGCSE

Provide the correct label for A.

• Radial muscle

• Pupil

• Suspensory ligament

• Rod

Label A correctly.

• Circular muscle

• Fovea

• Colour

• Iris

Radial muscles are one set of muscles involved in the iris reflex. Name the other set.

• Circular muscles

• Suspensory ligaments

• Ciliary muscles

• Biceps

State the name of the process of adjusting to light.

• pupil reflex

• Cornea reflex

• Accomodation

• Ajudication

'Adapting the eye to see different distances'

• accomodation

• adjustment

• cornification

• short sightedness

Ciliary muscles Contract up Close (CCC).

State the process this mnemonic (memory tool) describes.

• How the eye sees objects close by.

• How the eye sees objectd far away.

• How the eye sees everything.

• Nothing. Trick question.

Which part of the eye provides a link to the brain?

• Cornea

• Lens

• Conjuctiva

• Optic nerve

The eye is part of which section of the nervous system?

• Peripheral nervous system

• Central nervous system

Rods detect grey, black and white. Cones detect colour. Where are rods and cones?

• retina

• fovea

• iris

• sclera

Ciliary muscles Contract up Close, so which image shows accomodation of nearby objects?

• A

• B

• Neither