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lacrimal duct

Tear duct, flows from top outer corner to the hole in the lacrimal bone


membrane on outside of the eye and on the inside of the eyelid


wall of the eye (the whites)


clear front wall of the eye

optic nerve

carries impulses from retina to optic chiasma


colored part of the eye


Hole through iris

Aqueous humor

fluid between cornea and the lens. it provides support and nutrients to the cornea


behind the iris, held in place by the suspensory ligaments. it focuses light on to the retina

ciliary bodies

Muscles that pull ligaments that focus the lens

Suspensory ligaments

fine threads that hold the lens

Vitreous humor

gel-like liquid behind the lens


inner lining of the back part of the eyeball where the photoreceptors are found.


Photoreceptors around the edges of the retina. they sense blurry images in black and white


Photoreceptors in the center of the retina. they sense colors and fine detail.

Fovea centralis

area with the most cones

optic disc

Area with no rods or cones, where the nerve begins and information is sent.


the bending of light


focusing of the eye

the visual pathway

cornea > aqueous humor> lens> Vitreous humor> photoreceptors on the retina> optic disc> optic nerve> optic chiasm> optic tract> thalamus> occipital lobe


Outer cone shaped structure that gathers sound

External Auditory canal

also know as External accoustic meatus, carries sound waves to the tympanic membrane

ceruminous glands

glands that produce ear wax or cerumen

Tympanic membrane

eardrum, vibrates when hit by sound waves

auditory ossicles

3 small bones the malleus incus and the stapes

eustachian tubes

connect middle ear to the throat

oval window

membrane that borders the inner ear and middle ear


shell shaped structure in the inner ear

organ of corti

structure that contains hearing receptors called hair cells

auditory pathway

outer ear> tympanic membrane> middle ear (auditory ossicles) > oval window> inner ear (cochlea and organ of corti) > impulse is sent on the vestibulocochlear nerve > thalamus > temporal lobe


sense of balance, static (euilibrium while at rest) and dynamic (equilibrium while in motion)


entryway, area between cochlea and semicircular canals


sense of taste (five basic tastes sweet, sour, bitter, salt, umami)


Sense of smell. sensors are located on the very top of the nasal cavity

olfactory pathway

receptors> olfactory bulb > Olfactory tract > thalamus > temporal lobe and limbic system

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