Chapter 15 Ear and 16 Eye Flashcards Preview

Medical Terminology > Chapter 15 Ear and 16 Eye > Flashcards

Flashcards in Chapter 15 Ear and 16 Eye Deck (199):
1

audi/o

To hear

2

aur/i

Ear

3

chol/e

Gall or bile

4

cochle/o

Land snail

5

electr/o

Electricity

6

labyrinth/o

Maze, inner ear

7

laryng/o

Larynx, voice box

8

mast/o

Mastoid process, breast-shaped

9

myring/o

Eardrum, tympanic membrane

10

neur/o

Nerve

11

ot/o

Ear

12

pharyng/e

Pharynx

13

presby/o

Old

14

py/o

Pus

15

scler/o

Hardening

16

staped/o

Stapes,stirrup

17

steat/o

Fat

18

tympan/o

Eardrum,tympanic membrane

19

ambly/o

Dull

20

anis/o

Unequal

21

blephar/o

Eyelid

22

choroid/o

Choroid

23

conjunctiv/o

To join together. Conjunctiva

24

cor/o

Pupil

25

corne/o or kerat/o

Cornea

26

cry/o

Cold

27

cycl/o

Ciliary body

28

dacry/o or lacrimal/o

Tear, lacrimal duct, tear duct

29

dipl/o

Double

30

electr/o

Electricity

31

fibr/o

Fiber

32

foc/o

Focus

33

goni/o

Angle

34

irid/o

Iris

35

lent/o or phac/o

Lens

36

metr/o

Measure

37

mi/o

Less, small

38

ocul/o or ophthalm/o or opt/o

Eye

39

orth/o

Straight

40

phak/o

Lentil, lens

41

presby/o

Old

42

pupill/o

Pupil

43

rad/i

Radiating out from centre

44

retin/o

Retina

45

scler/o

Sclera, hardening

46

stigmat/o

Point

47

ton/o

Tone, tension

48

trich/o

Hair

49

trop/o

Turn

50

uve/o

Uvea

51

xen/o

Foreign material

52

xer/o

Dry

53

Auricle (pinna)

Collects and directs sound wave into the auditory canal and then into the tympanic membrane.

54

External Auditory Canal

Numerous glands line the canal and secrete cerumen to lubricate and protect the ear.

55

Middle ear: contains the ossicles: malleus, incus, and stapes; has several openings; lined with mucus membrane

Transmits sound vibrations from the tympanic membrane to the cochlea. Equalizes external/internal air pressure by the tympanic membrane

56

Parts of the External Ear

auricle ( pinna), external auditory canal, tympanic membrane (eardrum)

57

Tympanic membrane (eardrum)

Separates the external ear from the middle ear and it is not part of the extralegal ear.

58

Inner ear consists of

Cochlea, vestibule, and semicircular canals

59

Chochlea

Located on the basilar membrane is the organ of Corti containing hair cell sensory receptors for the sense of hearing.

60

Vestibule

Contains the utricle and saccule, membranous pouches containing perilymph. The utricle communicates with the semicircular canals and contains hair cell sensory receptors connected to fibres from the 8th cranial nerve. These hair cells react to the force of gravity and movement of otoliths (ear stone) and are part of the sense of equilibrium.

61

Semicircular canal

Contain nerve endings in the form of a hair cells that note changes in the position of the head and reports such movement to the brain through fibres leading to the eighth cranial nerve

62

Perilymph

Within the bony labyrinth of the inner ear, but separated from it by a pale fluid called this and is the outer fluid

63

Endolymph

The membranous labyrinth, filled with fluid called this on the inner cavity

64

Utricle and saccule in the vestibule

Membranous pouches containing perilymph

65

Acoustic

Pertaining to the sense of hearing

66

Audiology

Study of hearing disorders

67

Audiometer

Medical instrument used to measure hearing

68

-meter

Instrument to measure

69

Auditory

Pertaining to the sense of hearing

70

Aural

Pertaining to the ear

71

Auricle

External portion of the ear know as the pinna

72

Cerumen

Earwax

73

Cholesteatoma

Tumorlike mass filled with epithelial cell and cholesterol

74

Cochlea

Portion of the inner ear shaped like a snail shell; contains the Organ of Corti

75

Endolymph

Clear fluid contained in the labyrinth of the ear

76

Equilibrium

State of balance

77

Eustachian tube

Narrow tube between the middle ear and the throat that serves to equalize pressure on both sides of the eardrum

78

fenestration

surgical operation in which a new opening is made in the labyrinth of the inner ear to restore hearing

79

fenestrat-

window

80

incus

middle of the three ossicles; also called anvil

81

labyrinth

the inner ear; made up of the vestibule, cochlea, and semicircular canals

82

malleus

largest of the three ossicles; also called the hammer

83

Meniere's disease

abnormality of the inner ear with symptoms including; vertigo, tinnitus, fluctuating hearing loss, and the sensation of pressure or pain in the affected ear.

84

myringectomy

surgical excision of the tympanic membrane

85

ossicle

small bones; any one of the three bones of the middle ear; the malleus, incus, or stapes

86

Otis

pertaining to the ear

87

otodynia

pain in the ear; earache; also referred to as otalgia

88

otolith

ear stone

89

otopyorrhea

pus in the ear

90

otorhinolaryngology

study of the ear, nose, and larynx, the medical specialty referred to as ENT

91

otosclerosis

hardening condition of the ear structures characterized by progressive deafness

92

perilymph

serum fluid of the inner ear

93

peri-

around

94

presbycusis

impairment of hearing that occurs in the aging

95

stapes

innermost of the ossicles in the middle ear; also called the stirrup

96

tinnitus

the sensation of ringing or roaring sounds in one or both ears is a symptom associated with damage tot he auditory cells in the inner ear

97

tympanectomy

surgical excision of the tympanic membrane (eardrum)

98

tympanoplasy

surgical repair of the tympanic membrane (eardrum)

99

uricle

small, saclike structure of the labyrinth of the inner ear

100

vertigo

sensation of instability and loss of equilibrium; caused by a disturbance in the semicircular canal of the inner ear or the vestibular nuclei of the brainstem

101

auditory-evoked response

response to auditory stimuli that can me measured independently of the patient's response. Used to test the hearing of children who are too young for standard tests, autistic, hyperkinetic, and/or retarted

102

otoscopy

visual examination of the external auditory canal and the tympanic membrane via an otoscope

103

tuning fork test

method of testing hearing by the use of a tuning fork. two types of hearing loss can be distinguished through the use of this test; conductive and perceptive. The Rinne test is the most common

104

Rinne test

Uses a tuning fork to compare bone conduction (BC) hearing with air conduction (AC) After being struck the tuning fork is held on the mastoid process until the sound is no longer heard. The fork is then immediately placed just outside the ear.

105

AC

Air conduction

106

AOM

acute otitis media

107

BC

bone conduction

108

db, dB

decibel

109

ENG

electronystagmography

110

ENT

Ear, nose, and throat

111

HD

hearing distance

112

Hz

cycles/second

113

OM

Otitis media

114

TM

tympanic membrane

115

orbit

contains the eyeball, lined with fatty tissue to cushion the eyeball, and has several openings in which blood vessels and nerves pass

116

muscles of the eye

six short muscles provide support and rotary movement of the eyeball

117

eyelids

protect the eyeball from intense light, foreign particles, and impact, permits the eye to remain moist

118

conjunctiva

mucus membrane, acts as a protective covering for the exposed surface of the eyeball and helps to keep the eyelid and eyeball moist

119

lacrimal apparatus

produces, stores, and removes tears that cleanse and lubricate the eye

120

eyeball

organ of vision

121

sclera

outer layer of the eyeball composed of fibrous connective tissue; the white of the eye, it ends at the cornea

122

cornea

transparent anterior portion of the eyeball which bends light rays and helps to focus them on the surface of the retina

123

choroid

pigmented vascular membrane that prevents internal reflection of light

124

ciliary body

smooth muscle that forms a part of the ciliary body that governs the convexity of the lens; secretes nutrient fluids that nourish the cornea, the lens, and the surrounding tissue

125

iris

colored membrane attached to the ciliary body; regulates the amount of light admitted by the pupil

126

retina

innermost layer with photoreceptive cells; translates light waves focused on its surface into nerve impulses

127

lens

sharpens the focus of light on the retina

128

nasolacrimal duct

drains into the nasal cavity from the eye

129

visual acuity

VA; Acuteness or sharpness of vision,improves with age; A Snellen eye chart can be used to test it, the patient reads letters of various sizes from a distance of 20 ft.

130

aqueous humor

watery fluid in the anterior chamber of the eyeball

131

The inverted image on the retina gets corrected in the cerebral cortex of the brain

yeah!

132

accomodation

process by which the eyes make adjustments to see objects at various distances

133

amblyopia

dullness of vision; lazy eye

134

anisocoria

pupils are unequal

135

anis/o

unequal

136

aphakia

condition in which the crystalline lens is absent

137

phak

lentil, lens

138

bifocal

pertaining to having two foci, as in bifocal glasses, one for near vision, one for far vision

139

foc

focus

140

blephar-

eyelid

141

-ptosis

prolapse, drooping

142

cataract

opacity of the crystalline lens; symptoms are cloudy or blurry vision

143

chalazion

small, hard, painless cyst of the sebaceous gland of the eyelids

144

conjunctivitis

inflammation of the conjunctiva; pink eye

145

cryosurgery

type of surgery that uses extreme cold to destroy tissue

146

cycloplegia

paralysis of the ciliary muscle

147

dacryoma

tumorlike swelling caused by obstruction of the tear duct

148

diplopia

double vision

149

-plegia

stroke, paralysis

150

dacry-

tear duct

151

dipl/o

double

152

emmetropia (EM)

normal perfect vision

153

em-

in

154

metr

measure

155

-opia

sight, vision

156

entropion

turning inward of the margin of the lower eyelid

157

trop

turn

158

esotropia

(ST) condition in which the eye or eyes turn inward; crossed eyes

159

exotropia

(XT) turning outward of one or both eyes

160

gonioscope

instrument used to examine the angle of the anterior chamber of the eye

161

hyperopia

(HT) vision defect in which parallel rays come to a focus beyond the retina; farsightedness; can see near, can't see far

162

keratitis

inflammation of the cornea

163

kerat

cornea

164

karatoplasty

surgical repair of the cornea

165

lacrimal

pertaining to tears

166

macular degeneration

an incurable, age-related progressive eye disease; two types wet and dry

167

miotic

pertaining to an agent that causes the pupil to contract

168

mydriatic

pertaining to an agent that causes the pupil to dilate

169

mydriat-

dilation, widen

170

myopia

(MY) vision defect in which parallel rays come to a focus in the front of the retina; nearsightedness; can see far can't see near

171

nyctalopia

condition in which the individual has difficulty seeing at night, night blindness

172

nystagmus

involuntary, constant, rhythmic movement of the eyeball

173

ocular

pertaining to the eye

174

ophthalmology

study of the eye

175

orthoptics

study and treatment of defective binocular vision resulting from defects in ocular musculature; also a technique of eye exercises for correcting defective binocular vision

176

phacoemulsification

process of using ultrasound to disintegrate a cataract by inserting a needle through a small incision and aspirating the disintegrated cataract

177

photophobia

unusual intolerance to light

178

presbyopia

vision defect in which parallel rays come into focus beyond the retina; occurs normally with aging

179

retinal detachment

separation of the retina from the choroid layer of the eye that can be caused by trauma or can occur spontaniously

180

retinoblastoma

malignant tumor arising from the germ cell of the retina

181

strabismus

squinting

182

sty

inflammation of one or more of the sebaceous glands of the eyelid

183

tonography

recording of the intraocular pressure used in detecting glaucoma

184

tonometer

medical instrument used to measure intraocular pressure

185

trichiasis

condition of ingrowing eyelashes that rub against the cornea, causing a constant irritation to the eyeball

186

xenophthalmia

inflamed eye condition caused by foreign material

187

xerophthalmia

eye condition in which the conjunctiva is dry

188

gonioscopy

examination of the anterior chamber of the eye via a gonioscope; used for determining ocular motility and rotation

189

tonometry

measurement of the intraocular pressure (IOP) of the eye via a tonometer used to detect glaucoma

190

Acc

accomodation

191

EM

emmetropia

192

HT

hyperopia

193

IOL

intraocular lens

194

IOP

intraocular pressure

195

MY

myopia

196

ST

esotropia

197

STDs

sexually transmitted disease

198

VA

visual acuity

199

XT

exotropia