Eye Anatomy
the first structure in the eye light passes through
cornea
sends impulses to occipital lobe of the cerebral cortex
optic nerve
stimulated by chemical changes
chemoreceptors
word root for ear
ot/o
the inability to distinguish the differences between certain colors, inherited from the X chromosome
color blindness
inner layer of the eye
retina
regulates size of pupil
iris
found right under the surface of the skin (classified by location)
exteroceptors
word root for retina
retin/o
medical term for pink eye; blood vessels of conjunctiva become inflamed
conjunctivitis
dark in color, found in the middle layer of the eye
choroid
as objects move closer, the ____ (part of the eye) _____ (constricts or dilates)
pupil constricts
located in skeletal muscle, joint capsules and tendons
proprioceptors
word root for vision or eye
opt/o
when the proteins in the lens of the eye break down and the lens becomes cloudy, usually caused by aging
cataracts
a clear, inner mucous membrane that covers inside of eyelid and sclera
conjunctiva
secretes tears which have an antibacterial enzyme
lacrimal gland
dendritic endings encased in connective tissue capsule
encapsulated nerve endings
word root for membrane or eardrum
myring/o, tympan/o
name the 3 refractive disorders of the eye
myopia, hyperopia, astigmatism
pinpoint sized pit in the middle of the macula
fovea
axons of this cell converge to form optic nerve
ganglion cell
proprioceptors located on tendon, reflex causes muscle to relax
golgi tendon apparatus
word root for eyelid
blephar/o
abnormal alignment of the eyes; the condition of having a squint
strabismus