The Eye Flashcards
What are the sense organs
Ears
Skin
Eyes
Taste buds
Olfactory receptors in the nose
Which bit of the eye is the transparent part that refracts light
Cornea
Which bit of the eye is the white protective outer layer
Sclera
Which bit of the eye transmits visual information as electrical impulses to the brain
Optic nerve
Which bit of the eye contains receptor cells which are sensitive to colour and brightness
Retina
Which bit of the eye is the hole which light passes through the get to the retina
Pupil
Which but if the eye controls the pupil diameter (quantity of light reaching retina)
Iris
Which bit of the eye can change the shape of the lens
Ciliary muscles
Which bit of the eye connects the ciliary muscles to the lens
Suspensory ligaments
What happens to the eye when an object is close
The ciliary muscles contract and the suspensory ligaments slacken which makes the lens become fatter
What happens to the eye when viewing an object far away
The ciliary muscles slacken and the suspensory muscles contract which makes the lens become thinner
What happens to your eyes when your in bright light
The rods in the fovea detect the intensity of light which triggers the radial muscles to relax and the circular muscles to contract causing the pupil to constrict
What happens to your eyes when your in dim light
Your rods in the fovea detect the lack of light which triggers the radial muscles to contract and the circular muscles to relax which causes the pupil to dilate
