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Medical Terminology > Chapter 16: The Sensory System - 25 Tough Terms > Flashcards

Chapter 16: The Sensory System - 25 Tough Terms Flashcards

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USMLE® Step 1 flashcards
1
Q

Uvea components

A

Iris
Cilliary body
Choroid

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2
Q

Three specially shaped bones in the middle ear that anchor the eardrum to the tympanic cavity and that transmit vibrations to the inner ear

A

Auditory ossicles
Malleus (hammer)
Incus (anvil)
stapes (stirrup)

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3
Q

Funnel-like structure leading from the external ear to the external auditory meatus

A

Auricle

Pinna

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4
Q

Thin posterior membrane in the middle layer of the eye

A

Choroid

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5
Q

Thick anterior membrane in the middle layer of the eye

A

Ciliary body

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6
Q

Snail shaped structure in the inner ear that contains the organ of corti

A

Cochlea

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7
Q

Transparent anterior section of the eyeball that bends light in a process called refraction

A

Cornea

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8
Q

Fluid inside the membranous labyrinth

A

Endolymph

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9
Q

Tube that connects the middle ear to pharynx

A

Eustachian

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10
Q

Depression in the center of the macula lutea; perceives sharpest images

A

Fovea centralis

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11
Q

One of the three auditory ossicles; the anvil

A

Incus

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12
Q

Glands that secrete liquid to moisten the eyes and produce tears

A

Lacrimal glands

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13
Q

Colorless, flexible transparent body behind the iris

A

Lens

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14
Q

Inner ear structure containing hairlike sensors that move to maintain equilibrium

A

Macula

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15
Q

Small, yellowish area located in the center of the retina, which has a depression called the fovea centralis

A

Macula lutea

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16
Q

One of the three auditory ossicles; the hammer

A

Malleus

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17
Q

One of two tubes that make up the semicircular canals

A

Membranous labyrinth

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18
Q

Thick layer of nervous tissue in the retina

A

Neuroretina

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19
Q

Structure on the basilar membrane with hairlike receptors that receive and transmit sound waves

A

Organ of Corti

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20
Q

One of the two tubes that make up the semicircular canals

A

Osseus labyrinth

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21
Q

Small calcifications in the inner ear that help to maintain balance

A

Otoliths

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22
Q

Liquid secreted by the walls of the osseus labyrinth

A

Perilymph

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23
Q

Thick, tough membrane in the outer eye layer; supports eyeball structure

A

Sclera

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24
Q

One of the three auditory ossicles; stirrup

A

Stapes

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25
Q

Bony chamber between the semicircular canal and the cochlea

A

Vestibule

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26
Q

Pupil combining form

A

cor(o)
core(o)
Pupill(o)

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27
Q

Cornea combining form

Abnormal protrusion of the cornea

A

corne(o)
kerat(o)

keratoconus

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28
Q

Ciliary body combining form

A

cycl(o)

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29
Q

Tears combining form

A

Dacry(o)

Lacrim(o)

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30
Q

Iris

Prolapse of iris

A

Ir(o), Irid(o)

Iridoptosis

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31
Q

Eardrum, middle ear combining form

A

Myring(o)

Tympan(o)

32
Q

Eye combining form

A

Ocul(o)
Ophthalm(o)
Opt(o)
Optic(o)

33
Q

Ossicle combining form

A

Ossicul(o)

34
Q

Lens combining form

A

Phac(o), phak(o)

35
Q

White of the eye combining form

A

Scler(o)

36
Q

Darkness combining form

A

Scot(o)

37
Q

Unit of refracting power of a lens

A

Diopter

38
Q

Inflammation of the middle ear caused by air pressure changes, as in air travel

A

Aerotitis media

39
Q

Loss of hearing

A

Anacusis

40
Q

Absence of a lens

A

Aphakia

41
Q

Distortion of sight because of lack of focus of light rays at one point on the retina

A

Astigmatism

42
Q

Loss of elasticity of the eyelid

A

Blepharochlasis
Dermatochlasis

-chlasis = slackening

43
Q

Nodular inflammation that usually forms on the eyelid

A

Chalazion

44
Q

Fatty cyst within middle ear

A

Cholesteatoma

45
Q

Double vision

A

Diplopia

46
Q

Excessive tearing

A

Epiphora

47
Q

Deviation of one eye inward

A

Esotropia

48
Q

Abnormal protrusion of eyelids

A

Exophthalmos

Exophthalmus

49
Q

Deviation of one eye outward

A

Exotropia

50
Q

Eyestrain

Weakness of the ocular or ciliary muscles that causes the eyes to tire easily

A

Asthenopia

51
Q

Farsightedness; focusing behind the retina causing vision distortion

A

Hyperopia

52
Q

Any of various diseases caused by abnormally high eye pressure

A

Glaucoma

53
Q

Infection of a sebaceous gland of the eyelid;sty

A

Hordeolum

54
Q

Secretion of tears

A

Lacrimation

55
Q

Gradual loss of vision caused by degeneration of tissue in the macula

A

Macular degeneration

56
Q

Elevated pressure within the cochlea

A

Meniere’s disease

57
Q

Nearsightedness: Focusing in front of the retina causing vision distortion

A

Myopia

58
Q

Night blindness

A

Nyctalopia

59
Q

Excessive involuntary eyeball movement

A

Nystagmus

60
Q

Fungal infection of the external ear canal

A

Otitis Externa

61
Q

Inflammation of the middle ear

A

Otitis Media

62
Q

Impaired hearing

A

Paracusis

63
Q

Age related hearing loss

A

Presbyacusis

64
Q

Age-related diminished ability to focus or accomodate

A

Presbyopia

65
Q

Eye with an implanted lens after cataract surgery

A

Pseudophakia

66
Q

Progressive, inherited disease with a pigmented spot on the retina and poor night vision

A

Retinitis pigmentosa

67
Q

Blind spot in vision

A

Scotoma

68
Q

Eye misalignment

A

Strabismus

69
Q

Abnormal growth of eyelashes in a direction that causes them to rub on the eye

A

Trichiasis

70
Q

Removal of eyeball

A

Enucleation

71
Q

Use of ultrasound to break up and remove cataracts

A

Phacoemulsification

72
Q

Class of medication that causes contraction of pupil

A

Miiotic

73
Q

Class of medication that causes dilation of pupil

A

Mydriatic

74
Q

Instrument for determining eye refraction

A

Optomoter

75
Q

Pain in the tear sac

A

Dacryocystalgia

Medical Terminology (50 decks)

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