The Nervous System (EXTRA!) Flashcards
(9 cards)
1
Q
List two functions of the Sclera
A
1) Shape
2) Protection
2
Q
The Cornea covers and helps protect the eye. List two other functions of the Cornea
A
1) Refract Light
2) Eye Focus
3
Q
What is the function of the Optic Nerve?
A
Transmits visual information from eye to brain
4
Q
What is the function of the externally attached muscle?
A
Controls eye movement and helps focus images
5
Q
What is the purpose of the layer of fat around the eye?
A
Keeps the eye from bumping bone
6
Q
List the two functions of the Lens
A
Refract and focus light (accommodation!)
7
Q
What is the function of the Iris?
A
Contracts and Expands
8
Q
Describe the Pupil
A
SPACE
9
Q
Why does the Optic Nerve cause a blind spot?
A
There are no Photoreceptors - no visual information
