What is the human eye consist of by ZL
Iris
Control size of pupil
Pupil- control quality of light
Aqueous humor
Maintain shape of eyeball
Focus light into the eye
Retina
Layer containing photoreceptors which detects light
Vitreous humor and conjuctiva
Maintain light into eyeball
Focuses light into retina
Optic nerves
Nerve fibers which carry nerve impulses from brain to eye
Cornea
Refracts and focuses light into retina
Eye lens
Transparent and elastic convex lens
Allows light into retina
Sclera
Maintain and protects eyeball
Choroid
Prevents reflection of light towards the eye
Supply nutrients and oxygen to eye
Yellow spot
Most sensitive to light
Many photoreceptors
Blind spot
Not sensitive to light
No photoreceptors
Exit point for optic nerve fibers
Ciliary muscle
Change thickness of eye lens in position through relaxations and contractions
Suspensory ligaments
Hold eye lens in position