Seeing and Hearing Flashcards by Christopher Thomas

What are the accessory structures of the eye

Orbit
eye muscles
palpebrae
conjuctiva
lacrimal apparatus

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What are the combining forms for eye or sight

Opt/i
Opt/o
Optic/o
Ocul/o
Opthalm/o

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what is the orbit

eye socket

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what are palpebrae

what is its combining form

eyelids

blephar/o

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what are eyelashes

protective cilia

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what is conjuctiva

what is its combining form

mm’s around the eye (lines the orbit)

conjunctiv/o

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what is a lacrimal apparatus

what are the two combining forms

tear ducts

Lacrim/o
Dacry/o

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what are the structures of the eyeball

Sclera
Choroid
Retina
Eye chambers

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what is the sclera

Outer layer “white of the eye”

scler/o

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what is the transparent anterior portion of the sclera called

What are the combining forms

The cornea

Corne/o
Kerat/o

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what is the choroid and what does it include

middle layer

includes blood vessels, iris, pupil, lens, and ciliary body

choroid/o

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What is miosis and mydriasis

miosis = pupillary contraction

mydriasis = pupillary dialation

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what is the tapetum lucidum

structure formed from the choroid that reflect light

night vision

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What is the retina

Inner layer

nervous tissue that receives images

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what are the rods and cones

rods = light

cones = color

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what is the optic disk

part of the retina that collects light at the back of the eye

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what are the two parts of the eye chamber

anterior chamber= front/ before the lens

posterior chamber= back/ behind iris

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what does the anterior segment contain

aqueous humor = water

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what does the vitreous chamber contain

what is the vitreous combining form

vitreous humor = gel

Vitre/o

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What is accommodation

changing for focus

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what is refraction

bending of light (lens changes shape)

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what is convergence

eyes coming together to focus on one point

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what is acuity

clearness/ sharpness of image

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what is flourescein stain

stains cornea (collect in abrasions and test for obstructions in the lacrimal duct)

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what is the menace response

flinching (reflex of the eye)

what is an ophthalmoscope

instrument used to examine eyes

what is palpebral reflex

corners of the eyes

what is pupillary light reflex

dilation/ contraction of the eye

what is the schirmer tear test

testing for tear production

what is tonometry

measuring the pressure of the eye

what is anisocoria

unequal pupils

what is cataract

cloudiness of lens

what is conjunctivitis

inflammation of conjunctiva

what is corneal ulceration

surface depression of cornea

what is ectropion and entropion

ectropion = turning outward entropion = turning inward

what is epiphora

excessive tear production

what is glaucoma

excessive pressure of the eyeball

what is nystagmus

rhythmic movement of eyes

what is proptosis

eyeball pops out of socket

what is strabismus

cross eyed

what is blepharoplasty

surgical repair of eyelid (ectropion/ entropion)

what is enucleation

removal of the eyeball

what is the functions of the ear what are the combining forms for the ear

sensory organ that enable hearing and balance audit/o audi ot/o

what are the combining forms for sound

acoust/o | acous/o

what are the structures of the outer/external ear

Pinna external auditory canal tympanic membrane auditory ossicles

what is the function of the pinna what is the combining form for pinna what are the combining forms for external ear

funnel sound into the ear pinn/i Aur/l and aur/o

what is the function of the external auditory canal what collects in the external auditory canal

transmits sound form the pinna to the tympanic membrane cerumen

what is the function of the tympanic membrane what are the combining forms

transmit sound waves to the ossicles tympan/o and myring/o mean eardrum

what are the auditory ossicles

little bones behind the tympanic membrane malleus incus stapes

what are the structures of the middle ear

Eustachian tube oval window round window tympanic bulla

what is the function of the Eustachian tube

equalize air and middle ear pressure

what is the oval window

membrane that separates the middle and inner ear

what is the round window

membrane that receives sound waves through fluid after they have passed through the cochlea

what is the tympanic bulla

osseous chamber that houses the middle ear

what are the structures of the inner ear

vestibule semicircular canals cochlea

what is the vestibule

balance and equilibrium

what are the semicircular canals

three canals that regulate equilibrium

what is the cochlea

organ of hearing

what is air conduction

soundwaves entering the ear and striking the tympanic membrane

what is bone conduction

the ossicles conducting sound waves through the middle ear

what is sensorineural conduction

stimulation of hair cells initiating a nerve impulse that is transmitted to the vestibulocochlear nerve. The nerve impulse is then transmitted to the brain

what is an otoscope

instrument used to examine the ear

what is an aural hematoma

collection of blood in the external ear

what is otitis

inflammation of the ear

otitis. what is externa

outer ear

otitis what is media

middle ear

otitis what is interna

internal ear

what is vertigo

dizzyness

what is ablation

removal of a part | coring out the ear parts due to recurrent ear infections

Seeing and Hearing Flashcards

(69 cards)