The Eye deffinitions (Science Mar. 2022) Flashcards
Rigid opaque membrane
protects the eye from shock and gives it shape
sclera
middle layer of the eye, contains blood vessels that nourish the eye
choroid
innermost layer at the back, thin & beige
covered with millions of light sensatives nerve cells that transform into never impulses
= processor/transformer
retina
extension of the choroid
pigmented membrane with opening, “pupil”.
serves to regulate the amount of light coming into the eye
iris
opening in the center of the iris
pupil
flatenned sphere focuses light rays on the retina.
held in place by the muscle which flattens it
lens
transparent liquid between the cornea & lens
aqueous humor
clear and rigid membrane, extension of the sclera in front
slightly more dome shaped than the rest of the eye
cornea
transparent jelly-like substance between=n=n the lens & retina
vitreous humor
4 transparent liquids:
- cornea
- aqueous humor
- vitrous humor
- lens
3 layers of membrane
- sclera
- choroid
- retina
STIMULUS
RECEIVER (organ)
TRANSFORMER/PROCESSOR
- LIGHT
- EYE
- RETINA
CONDUCTER
ANALYSER
- optic nerve
- occipital lobe