Structures of the eye

Identify the structure which transmits information from the eye to the brain.

• Chorid

• Cornea

• Optic nerve

• Retina

Determine the following structures:

a

b

c

d

e

Optic nerve

Lens

Cornea

Retina

Macula

Identify which part of the eye detects light. 

• Choroid

• Retina

• Optic nerve

• Cornea

Determine which photoreceptors are best for helping us find our way to the bathroom at night without bumping into the furniture. 

• Rods

• Cones

Answer explanation

Rods are responsible for peripheral and night vision. They specialize in detecting information in low light; however, this means that they have low visual acuity (lacking in detail).

Jemma is watching the football game with her family. They are sitting in the back of the stadium but she can see the numbers on the back of the player's jerseys.

• Rods

• Cones

Answer explanation

Cones are responsible for helping us see fine detail and colour. They have high visual acuity (detail) in bright light

Distinguish between rods and cones.

To distinguish means to recognise or note/indicate as being distinct or different from; to note differences between.

Write one sentence.

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Answer explanation

There are numerous things you could use to distinguish between rods and cones, here are a few you could detail:

•Rods detect visual information in low light whereas cones need bright light to detect information.

•Rods are photoreceptors with high sensitivity but low visual acuity whereas cones have low sensitivity and high visual acuity.

•Rods detect black & white whereas cones detect colour.

Identify the part of the retina that allows us to see fine detail.

• Cornea

• Lens

• Macula

• Optic nerve

Answer explanation

The macula is the central part of the retina that allows us to see fine detail.

Match the structures with their function

a

b

c

d

e

Lens

Macula

Retina

Iris

Optic nerve