The Eye 👀 Flashcards
1
Q
Cornea function:
A
Changes shape in order to focus light on the retina
2
Q
Iris function
A
Contains muscles to control the size of the pupil
3
Q
Lens function
A
Bends light to BEGIN the focusing process
4
Q
Retina function
A
contains the light receptors
5
Q
Optic nerve function:
A
Bundle of many sensory neurones leading to the brain
6
Q
If you are looking at a distant object…..
A
- the ciliary muscles relax
- the suspensory ligaments go tight
- the lens is pulled into a thin shape
7
Q
When in bright light the….
A
Circular muscles contract
Radial muscles relax
8
Q
When in dim light…..
A
The circular muscles relax
The radial muscles contract
9
Q
When looking at a near object…..
A
- the ciliary muscles contract
- the suspensory ligaments go slack
- the eye is in a fat dome shape
