The Eye

Question 1

Rods

Answer 1

• Photoreceptors
• React to low intensity light
• Give rise to black and white vision

Question 2

Iris

Answer 2

• Pigmented structure suspended towards the centre of the eye
• Controls the ammount of light that enters the eye
• Changes the size of the pupil

Question 3

White connective tissue that makes the outside of the eyeball

Answer 3

Sclera

Question 4

The lens of the eye

Answer 4

• An elastic, transparent, biconvex structure
• Changes shape
• Refracts light from near and far objects
• Foms a clear image on the retina

Question 5

An organ formed as a result of the concentration of receptors with the same function

Answer 5

sense organ

Question 6

Dark, pigmented layer of the eye that provides the cells with oxygen and nutrients

Answer 6

choroid

Question 7

Involuntary muscles that cause the curvature of the lense to change during accomodation

Answer 7

ciliary body

Question 8

Cones

Answer 8

• Photoreceptors
• React to high light intensities
• Give rise to bright, sharp, colour vision

Question 9

conjunctiva

Answer 9

• The mucus membrane that covers the front of the eye
• contains pain receptors
• Results in the blink reflex

Question 10

The receptors in the eye that repond to light stimuli

Answer 10

photoreceptors

Question 11

The layer of the eye that contains photoreceptors

Answer 11

Retina

Question 12

suspensory ligaments

Answer 12

Structures attaching ciliary body muscles to the eyes lens

Question 13

Front transparent part of the eyeball, more convex than the rest of the eyeball

Answer 13

cornea

Question 14

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