6.1 eye structure Flashcards
1
Q
what is retina
A
Retina has rods and cones
Rod: receptor cells that detect low light (helps with dark rooms)
cones receptors cells that detect color (day vision)
2
Q
what is optic nerve
A
carries nerve impulses to the brain
3
Q
what is sclera
A
thick white layer that protects your eye
4
Q
what is cornea
A
non adjustable lens system that refracts light Into the eye
5
Q
what is Aqueos humor
A
clear watery fluid that refracts light into the eye
6
Q
what is ciliary body muscles
A
tightens or loosens the lens to focus on objects at different distances
