The Eye Flashcards
1
Q
Rods
A
- Photoreceptors
- React to low intensity light
- Give rise to black and white vision
2
Q
Iris
A
- Pigmented structure suspended towards the centre of the eye
- Controls the ammount of light that enters the eye
- Changes the size of the pupil
3
Q
White connective tissue that makes the outside of the eyeball
A
Sclera
4
Q
The lens of the eye
A
- An elastic, transparent, biconvex structure
- Changes shape
- Refracts light from near and far objects
- Foms a clear image on the retina
5
Q
An organ formed as a result of the concentration of receptors with the same function
A
sense organ
6
Q
Dark, pigmented layer of the eye that provides the cells with oxygen and nutrients
A
choroid
7
Q
Involuntary muscles that cause the curvature of the lense to change during accomodation
A
ciliary body
8
Q
Cones
A
- Photoreceptors
- React to high light intensities
- Give rise to bright, sharp, colour vision
9
Q
conjunctiva
A
- The mucus membrane that covers the front of the eye
- contains pain receptors
- Results in the blink reflex
10
Q
The receptors in the eye that repond to light stimuli
A
photoreceptors
11
Q
The layer of the eye that contains photoreceptors
A
Retina
12
Q
suspensory ligaments
A
Structures attaching ciliary body muscles to the eyes lens
13
Q
Front transparent part of the eyeball, more convex than the rest of the eyeball
A
cornea
14
Q
103
A
