eyeball physiology

optic nerve

axons that give visual information to brain

aqueous humor

nutrient to cornea, lens

lens

refracat, focus light

supensory ligament

hold lens, adjust lens shape with cillary body

vitreous humor

maintain pressure on retina

pupil

adjust amount of light reachin retina

sclera

muscle attatchment, protect and anchor eye

cornea

refract light

choroid

nutrient to retina

ciliary body

smooth muscle tha tadjusts shape of lens to bend light to fovea

iris

trap excessive light, muscle that chnage size fo pupil

ora serrata

where cillary body meets choroid

retina

responsive to light, phototransduction

optic disc

axons leaving eye, vessels entering

macula lutea

many cones, contain fovea centralis

fovea centralis

highest density of cones, no rods, where bright light is focused for sharpest resoloution

photoreceptor(cones, rods)

responsive to light energy, relay signal to bipolar cells

bipolar cells

neuron between photoreceptor and ganglion cell

ganglion cell

recieve info from bipolar cell, axon make up optic nerve, bring to brain