Med Term 2 Vocab Ch 17

Front 1

accommodation

Back 1

normal adjustment of the eye to focus on objects from far to near

Front 2

acoustic

Back 2

pertaining to hearing

Front 3

acoustic neuroma

Back 3

benign tumor arising from the acoustic nerve

Front 4

ambylopia

Back 4

reduced vision

Front 5

anisocoria

Back 5

inequality in size of puplis

Front 6

anterior chamber

Back 6

space behind the cornea and in front of the lens and iris

Front 7

aphakia

Back 7

absence of the lens of the eye

Front 8

aqueous humor

Back 8

fluid produced by the cilary body and found in the anterior chamber of the eye

Front 9

astigmatism

Back 9

abnormal curvature of the eyeball so that rays of light are not focused on a single point on the retina

Front 10

audiogram

Back 10

record of hearing using an autiometer

Front 11

autometer

Back 11

instrument to measure or test hearing

Front 12

autometry

Back 12

process of testing hearing

Front 13

auditory canal

Back 13

channel leading from the ear flap to the eardrum

Front 14

auditory meatus

Back 14

opening of the auditory canal to the outside of the body

Front 15

auditory nerve fibers

Back 15

carry impulses from the inner ear to the brain

Front 16

auditory tube

Back 16

channel between the middle ear and the throat

Front 17

Aural

Back 17

pertaining to the ear

Front 18

auricle

Back 18

flap of the ear

Front 19

biconvex

Back 19

having two sides that are rounded, elevated, and curved evenly like part of a sphere.

Front 20

biepharitis

Back 20

inflammation of an eyelid

Front 21

biepharoptosis

Back 21

prolapse of the upper eyelid

Front 22

cataract

Back 22

clouding or loss of transparency of the lens of the eye

Front 23

cerumen

Back 23

waxy substance secreted by the ear, ear wax

Front 24

chalazion

Back 24

small, hard mass on the eyelid

Front 25

cholesteatoma

Back 25

middle ear mass of cellular debris and cholesterol crystals

Front 26

choroid

Back 26

middle, vascular layer of the eye

Front 27

ciliary body

Back 27

structure on each side of the lens that connects the choroid and iris, contains muscles that control the shape of the lens

Front 28

cochlea

Back 28

snail-shaped, spirally wound tube in the inner ear, contains hearing sensitive receptor cells

Front 29

cochlear

Back 29

pertaining to the cochlea

Front 30

cone

Back 30

photoreceptor cell in the retina; responsible for color and central vision

Front 31

conjunctiva

Back 31

delicate membrane lining the eyelids and covering the eyeball

Front 32

conjunctivitis

Back 32

inflammation of the conjunctiva

Front 33

cornea

Back 33

fibrous transparent layer of clear tissue that extends over the anterior portion of the eyeball

Front 34

corneal abrasion

Back 34

rubbing off of a part of the outer layer of the cornea

Front 35

corneoscleral

Back 35

pertaining to the cornea and sciera, which is the white of the eye

Front 36

cycloplegia

Back 36

paralysis of the muscles of the ciliary body

Front 37

darcryoadenitis

Back 37

inflammation of tear glands

Front 38

deafness

Back 38

loss of the ability to hear

Front 39

diabetic retinopathy

Back 39

disease of the retina due to long-term effects of diabetes

Front 40

diplopia

Back 40

double vision

Front 41

ear thermometry

Back 41

measurement of the temperature of the tympanic membrane by detection of infrared radiation from the eardrum

Front 42

endolymph

Back 42

fluid within the labyrinth of the inner ear, conducts sound waves

Front 43

enucleation

Back 43

removal of the eyeball from the orbit of the eye

Front 44

esotropia

Back 44

turning inward of one or both pupils, cross-eyes

Front 45

eustachian tube

Back 45

channel between the middle ear and the throat, auditory tube

Front 46

exotropial

Back 46

turning to the side or outward of one or both pupils

Front 47

fluorescein angiography

Back 47

intravenous injection of a dye followed by serial photographs of the retina through dilated pupils

Front 48

fovea centralis

Back 48

tiny pit or depression in the retina that is the region of clearest vision

Front 49

fundus of the eye

Back 49

posterior, inner part of the eye

Front 50

glaucoma

Back 50

increased intraocular pressure resulting in damage of the retina and optic nerve loss of vision

Front 51

hemianopsia

Back 51

absence of vision in half of the visual field (common in stroke victims)

Front 52

hordeolum (stye or sty)

Back 52

localized, purulent, inflammatory staphylococcal infection of a sebaceous gland in the eyelid

Front 53

hyperopia

Back 53

farsightedness

Front 54

hypertensive retinopathy

Back 54

Disease of the retina due to high blood pressure.

Front 55

intracocular

Back 55

'

Front 56

iridectomy

Back 56

Removal of a portion of the iris

Front 57

iridic

Back 57

Pertaining to the iris

Front 58

iris

Back 58

pigmented (color) layer that opens and closes to allow more or less light into the eye.

Front 59

iritis

Back 59

pain, sensitivity to light , and lacrimation

Front 60

keratitis

Back 60

Inflammation of the cornea

Front 61

keratoplasty

Back 61

surgical repair of the cornea

Front 62

lacrimal

Back 62

Pertaining to tears

Front 63

lacrimation

Back 63

Production of tears

Front 64

laser photocoagulation

Back 64

intense, precisely focused light beam creates an inflammatory reaction that seals retinal tears and leaky retinal blood vessels

Front 65

lens

Back 65

transparent, biconvex body behind the pupil of the eye. it bends light rays to bring them into focus on the retinal

Front 66

macula

Back 66

yellowish region on the retina lateral to and slightly below the optic disc; contains the fovea centralis, which is the area of clearest vision

Front 67

macular degeneration

Back 67

process damage to the macula of the retina

Front 68

miosis

Back 68

Contraction of the pupil of the eye

Front 69

miotic

Back 69

Drug that causes the pupil of the eye to contract

Front 70

mydrasis

Back 70

Widening of the pupil of the eye

Front 71

myopia

Back 71

nearsightedness

Front 72

nyctalopia

Back 72

Night blindness or difficult, poor vision at night

Front 73

nystagmus

Back 73

repetitive rhythmic movements of one or both eyes

Front 74

ophthalmic

Back 74

Pertaining to the eye

Front 75

ophthalmologist

Back 75

doctor who specializes in treating disorders of the eye

Front 76

ophthalmoplegia

Back 76

Paralysis of muscles that move the eyeball

Front 77

ophthalmoscopy

Back 77

visual examination of the interior of the eye

Front 78

optic chiasm

Back 78

point at which optic nerve fibers cross in the brain

Front 79

optic disc

Back 79

region at the back of the eye where the optic nerve meets the retina. It is the blind spot of the eye because it contains only nerve fibers, no rods or cones, and is thus insensitive to light

Front 80

optician

Back 80

nonmedical professional who grinds lenses and fits glasses but cannot prescribe lenses

Front 81

optic nerve

Back 81

cranial nerve carrying impulses from the retina to the brain

Front 82

optometrist

Back 82

Nonmedical professional trained to examine and measure the eye to prescribe and fit eyeglasses and contact lenses

Front 83

palpebral

Back 83

Pertaining to an eyelid.

Front 84

papilledema

Back 84

Swelling of the optic disc; associated with increased pressure within the eye.

Front 85

phacoemulsification

Back 85

ultrasonic vibrations break up the lens, which then is aspirated through the ultrasonic probe

Front 86

photophobia

Back 86

Sensitivity to light.

Front 87

presbyopia

Back 87

impairment of vision as a result of old age

Front 88

pupil

Back 88

central opening of the iris

Front 89

pupillary

Back 89

Pertaining to the pupil of the eye.

Front 90

refraction

Back 90

bending of light rays by the cornea, lens, and fluids of the eye to bring rays into focus on the retina

Front 91

retina

Back 91

light-sensitive nerve cell layer of the eye containing photoreceptor cells (rods and cones)

Front 92

retinal detachment

Back 92

two layers of the retina separate from each other

Front 93

retinitis pigmentosa

Back 93

Inflammation of the retina with pigmentation and progressive scarring of tissue.

Front 94

rod

Back 94

photoreceptor cell of the retina essential for vision in dim light and for peripheral vision'

Front 95

sclera

Back 95

tough, white outer coat of the eyeball

Front 96

scleral buckle

Back 96

suture of a silicone band to the sclera over a detached portion of the retina

Front 97

scleritis

Back 97

Inflammation of the sclera

Front 98

scotoma

Back 98

Blind spot in the field of vision.

Front 99

slit lamp microscopy

Back 99

examination of anterior ocular structures under microscopic maginification

Front 100

strabismus

Back 100

abnormal deviation of the eye

Front 101

thalamus

Back 101

relay center of the brain. Optic nerve fibers pass through the thalamus on their way to the cerebral cortex

Front 102

tonometry

Back 102

Measurement of tension and pressure within the eye; glaucoma test.

Front 103

uveitis

Back 103

Inflammation of the uvea, which is the vascular layer of the eye (including the iris, choroids, and ciliary body).

Front 104

visual acuity test

Back 104

charity of vision is assessed

Front 105

visual field test

Back 105

measurement of the area with in which objects are seen when the eyes are fixed, looking straight ahead without movement of the head

Front 106

vitrectomy

Back 106

removal of the vitreous humor

Front 107

vitreous humor

Back 107

soft, jelly-like material behind the lens in the vitreous chamber, helps maintain the shape of the eyeball'

Front 108

xerophthalmia

Back 108

Condition of excessive dryness of the eye

Front 109

acoustic

Back 109

pertaining to hearing

Front 110

acoustic neuroma

Back 110

benign tumor arising from acoustic nerve

Front 111

audiogram

Back 111

Record of hearing using an audiometer.

Front 112

audiologist

Back 112

Health care professional specializing in the evaluation and rehabilitation of people with hearing loss

Front 113

audiometer

Back 113

Instrument to measure or test hearing.

Front 114

audiometry

Back 114

Process of testing hearing.

Front 115

auditory canal

Back 115

channel that leads from the pinna to the eardrum

Front 116

auditory meatus

Back 116

auditory canal

Front 117

auditory nerve fibers

Back 117

carry impulses from the inner ear to the brain

Front 118

auditory tube

Back 118

channel between the middle ear and the nasopharynx

Front 119

aural

Back 119

Pertaining to the ear.

Front 120

auricle

Back 120

flap of the ear; the protruding part of the external ear

Front 121

cerumen

Back 121

waxy substance secreted by the external ear (earwax)

Front 122

cholesteatoma

Back 122

collection of skin cells and cholesterol in a sac within the middle ear

Front 123

cochlea

Back 123

snail-shaped, spirally wound tube in the inner ear, contains hearing-sensitive receptor cells

Front 124

cochlear

Back 124

Pertaining to the cochlea.

Front 125

deafness

Back 125

loss of ability to hear

Front 126

ear thermometry

Back 126

Measurement of the temperature of the tympanic membrane by detection of infrared radiation from the eardrum.

Front 127

endolymph

Back 127

fluid within the labyrinth of the inner ear

Front 128

eustachian tube

Back 128

auditory tube

Front 129

hyperacusis

Back 129

Excessive sensitivity to sounds.

Front 130

incus

Back 130

second ossicle (bone) of the middle ear

Front 131

labyrinth

Back 131

maze-like series of canals of the inner ear

Front 132

macrotia

Back 132

Abnormally large ears.

Front 133

malleus

Back 133

first ossicle of the middle ear (hammer)

Front 134

mastoiditis

Back 134

Inflammation and infection of the mastoid process just behind the ear.

Front 135

Meniere disease

Back 135

disorder of the labyrinth of the inner ear.

Front 136

myringitis

Back 136

Inflammation of the eardrum.

Front 137

myringotomy

Back 137

Incision of the eardrum.

Front 138

ossicle

Back 138

small bone of the ear, includes the malleus, incus, and staples

Front 139

ossiculopasty

Back 139

Surgical repair of an ossicle (small bone) of the middle ear.

Front 140

otic

Back 140

Pertaining to the ear

Front 141

otolaryngologist

Back 141

Specialist (surgeon) in ear, nose, and throat disorders.

Front 142

otomycosis

Back 142

Fungal infection of the ear.

Front 143

otopyorrhea

Back 143

Discharge of pus from the ear.

Front 144

otosclerosis

Back 144

hardening of the bony tissue of the middle ear

Front 145

otoscopy

Back 145

Visual examination of the ear using an otoscope.

Front 146

oval window

Back 146

membrane between the middle ear and the inner ear

Front 147

perilymph

Back 147

fluid contained in the labryinth if the inner ear

Front 148

pinna

Back 148

auricle, flap of the ear

Front 149

postauricular

Back 149

Pertaining to behind the ear.

Front 150

presbycusis

Back 150

Progressive loss of hearing, occurring in middle and older age.

Front 151

salpingopharyngeal

Back 151

Pertaining to the eustachian tube and the throat.

Front 152

semicircular canals

Back 152

passages in the inner ear associated with maintaining equilibrium

Front 153

serous otitis media

Back 153

Noninfectious inflammation of the middle ear with accumulation of clear fluid.

Front 154

stapedectomy

Back 154

Removal of the stapes (third middle ear bone).

Front 155

staples

Back 155

third ossicle of the middle ear (stirrup)

Front 156

suppurative otitis media

Back 156

Infectious inflammation of the middle ear with pus formation.

Front 157

tinnitus

Back 157

sensation of noises (ringing, buzzing, whistling, booming) in the ears

Front 158

tuning fork test

Back 158

Measure bone and air conduction of sound through the ear.

Front 159

tympanic membrane

Back 159

membrane between the outer and the middle ear (eardrum)

Front 160

tympanoplasty

Back 160

Surgical repair of the eardrum.

Front 161

vertigo

Back 161

sensation of irregular or whirling motion either of oneself or of external objects

Front 162

vestibule

Back 162

central cavity of the labyrinth, connecting the semicircular canals and the cochlea.

Front 163

vestibulocochlear

Back 163

Pertaining to the vestibule and cochlea