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MT 2 (CT) > Seeing and Hearing > Flashcards

Seeing and Hearing Flashcards

0
Q

What are the accessory structures of the eye

A 
Orbit
eye muscles
palpebrae
conjuctiva
lacrimal apparatus
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1
Q

What are the combining forms for eye or sight

A 
Opt/i
Opt/o
Optic/o
Ocul/o
Opthalm/o
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2
Q

what is the orbit

A

eye socket

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3
Q

what are palpebrae

what is its combining form

A

eyelids

blephar/o

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4
Q

what are eyelashes

A

protective cilia

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5
Q

what is conjuctiva

what is its combining form

A

mm’s around the eye (lines the orbit)

conjunctiv/o

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6
Q

what is a lacrimal apparatus

what are the two combining forms

A

tear ducts

Lacrim/o
Dacry/o

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7
Q

what are the structures of the eyeball

A

Sclera
Choroid
Retina
Eye chambers

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8
Q

what is the sclera

A

Outer layer “white of the eye”

scler/o

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9
Q

what is the transparent anterior portion of the sclera called

What are the combining forms

A

The cornea

Corne/o
Kerat/o

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10
Q

what is the choroid and what does it include

A

middle layer

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

choroid/o

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11
Q

What is miosis and mydriasis

A

miosis = pupillary contraction

mydriasis = pupillary dialation

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12
Q

what is the tapetum lucidum

A

structure formed from the choroid that reflect light

night vision

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13
Q

What is the retina

A

Inner layer

nervous tissue that receives images

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14
Q

what are the rods and cones

A

rods = light

cones = color

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15
Q

what is the optic disk

A

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

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16
Q

what are the two parts of the eye chamber

A

anterior chamber= front/ before the lens

posterior chamber= back/ behind iris

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17
Q

what does the anterior segment contain

A

aqueous humor = water

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18
Q

what does the vitreous chamber contain

what is the vitreous combining form

A

vitreous humor = gel

Vitre/o

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19
Q

What is accommodation

A

changing for focus

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20
Q

what is refraction

A

bending of light (lens changes shape)

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21
Q

what is convergence

A

eyes coming together to focus on one point

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22
Q

what is acuity

A

clearness/ sharpness of image

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23
Q

what is flourescein stain

A

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

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24
Q

what is the menace response

A

flinching (reflex of the eye)

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25
Q

what is an ophthalmoscope

A

instrument used to examine eyes

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26
Q

what is palpebral reflex

A

corners of the eyes

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27
Q

what is pupillary light reflex

A

dilation/ contraction of the eye

28
Q

what is the schirmer tear test

A

testing for tear production

29
Q

what is tonometry

A

measuring the pressure of the eye

30
Q

what is anisocoria

A

unequal pupils

31
Q

what is cataract

A

cloudiness of lens

32
Q

what is conjunctivitis

A

inflammation of conjunctiva

33
Q

what is corneal ulceration

A

surface depression of cornea

34
Q

what is ectropion and entropion

A

ectropion = turning outward

entropion = turning inward

35
Q

what is epiphora

A

excessive tear production

36
Q

what is glaucoma

A

excessive pressure of the eyeball

37
Q

what is nystagmus

A

rhythmic movement of eyes

38
Q

what is proptosis

A

eyeball pops out of socket

39
Q

what is strabismus

A

cross eyed

40
Q

what is blepharoplasty

A

surgical repair of eyelid (ectropion/ entropion)

41
Q

what is enucleation

A

removal of the eyeball

42
Q

what is the functions of the ear

what are the combining forms for the ear

A

sensory organ that enable hearing and balance

audit/o
audi
ot/o

43
Q

what are the combining forms for sound

A

acoust/o

acous/o

44
Q

what are the structures of the outer/external ear

A

Pinna
external auditory canal
tympanic membrane
auditory ossicles

45
Q

what is the function of the pinna

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

A

funnel sound into the ear

pinn/i

Aur/l and aur/o

46
Q

what is the function of the external auditory canal

what collects in the external auditory canal

A

transmits sound form the pinna to the tympanic membrane

cerumen

47
Q

what is the function of the tympanic membrane

what are the combining forms

A

transmit sound waves to the ossicles

tympan/o and myring/o mean eardrum

48
Q

what are the auditory ossicles

A

little bones behind the tympanic membrane

malleus
incus
stapes

49
Q

what are the structures of the middle ear

A

Eustachian tube
oval window
round window
tympanic bulla

50
Q

what is the function of the Eustachian tube

A

equalize air and middle ear pressure

51
Q

what is the oval window

A

membrane that separates the middle and inner ear

52
Q

what is the round window

A

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

53
Q

what is the tympanic bulla

A

osseous chamber that houses the middle ear

54
Q

what are the structures of the inner ear

A

vestibule
semicircular canals
cochlea

55
Q

what is the vestibule

A

balance and equilibrium

56
Q

what are the semicircular canals

A

three canals that regulate equilibrium

57
Q

what is the cochlea

A

organ of hearing

58
Q

what is air conduction

A

soundwaves entering the ear and striking the tympanic membrane

59
Q

what is bone conduction

A

the ossicles conducting sound waves through the middle ear

60
Q

what is sensorineural conduction

A

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

61
Q

what is an otoscope

A

instrument used to examine the ear

62
Q

what is an aural hematoma

A

collection of blood in the external ear

63
Q

what is otitis

A

inflammation of the ear

64
Q

otitis.

what is externa

A

outer ear

65
Q

otitis

what is media

A

middle ear

66
Q

otitis

what is interna

A

internal ear

67
Q

what is vertigo

A

dizzyness

68
Q

what is ablation

A

removal of a part

coring out the ear parts due to recurrent ear infections

MT 2 (CT) (2 decks)

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