cow eye anatomy

allows us to focus on objects that are close or far away

cornea

causes sunshine

tapetum lucidum

converts light information into electrical signals that can be sent to the brain

retina

dark membrane between the sclera and retina

choroid coat

fat tissue

adipose tissue

filled with smooth muscles that contract and relax to change the size of the pupil

iris

focuses incoming light directly on the retina

lens

gloopy gelatinous fluid inside the eye maintaining the shape of the entire eye

vitreous humor

hard flattened sphere behind the cornea

lens

has a curved surface that bends light

cornea

lines the orbit to cushion the eye

adipose tissue

maintains shape of cornea

aqueous humor

membrane at the back of the internal eye filled with photoreceptor cells

retina

membrane that wraps around the outside of the entire eye maintaining the shape of the eye

sclera

move the entire eye diff directions

extraocular muscle

muscles outside the eye

extraocular muscle

not found in humans

tapetum lucidum

opening center of the iris

pupil

opening that gets larger of smaller to control the light

pupil

photoreceptor cells that capable of color vision

cones

photoreceptors cannot detect color

rods

photoreceptor cells that function in a light environment

cone

photoreceptor cells that function when light levels are low

rod

reflects light backwards in the eye to improve vision when light levels are low

tapetum lucidum

rich in blood vessels in order to provide nutrient

choriod coat

tough and clear layer at the front of the eye

cornea

transmits visual information from your eye to your brain

optic nerve

watery fluid between the lens and cornea

aqueous humor

white of eye

sclera