Chapter 16: The Sensory System - 25 Tough Terms

Question 1

Uvea components

Answer 1

Iris
Cilliary body
Choroid

Question 2

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

Answer 2

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

Question 3

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

Answer 3

Auricle

Pinna

Question 4

Thin posterior membrane in the middle layer of the eye

Answer 4

Choroid

Question 5

Thick anterior membrane in the middle layer of the eye

Answer 5

Ciliary body

Question 6

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

Answer 6

Cochlea

Question 7

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

Answer 7

Cornea

Question 8

Fluid inside the membranous labyrinth

Answer 8

Endolymph

Question 9

Tube that connects the middle ear to pharynx

Answer 9

Eustachian

Question 10

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

Answer 10

Fovea centralis

Question 11

One of the three auditory ossicles; the anvil

Answer 11

Incus

Question 12

Glands that secrete liquid to moisten the eyes and produce tears

Answer 12

Lacrimal glands

Question 13

Colorless, flexible transparent body behind the iris

Answer 13

Lens

Question 14

Inner ear structure containing hairlike sensors that move to maintain equilibrium

Answer 14

Macula

Question 15

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

Answer 15

Macula lutea

Question 16

One of the three auditory ossicles; the hammer

Answer 16

Malleus

Question 17

One of two tubes that make up the semicircular canals

Answer 17

Membranous labyrinth

Question 18

Thick layer of nervous tissue in the retina

Answer 18

Neuroretina

Question 19

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

Answer 19

Organ of Corti

Question 20

One of the two tubes that make up the semicircular canals

Answer 20

Osseus labyrinth

Question 21

Small calcifications in the inner ear that help to maintain balance

Answer 21

Otoliths

Question 22

Liquid secreted by the walls of the osseus labyrinth

Answer 22

Perilymph

Question 23

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

Answer 23

Sclera

Question 24

One of the three auditory ossicles; stirrup

Answer 24

Stapes

Question 25

Bony chamber between the semicircular canal and the cochlea

Answer 25

Vestibule

Question 26

Pupil combining form

Answer 26

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

Question 27

Cornea combining form Abnormal protrusion of the cornea

Answer 27

corne(o) kerat(o) keratoconus

Question 28

Ciliary body combining form

Answer 28

cycl(o)

Question 29

Tears combining form

Answer 29

Dacry(o) | Lacrim(o)

Question 30

Iris Prolapse of iris

Answer 30

Ir(o), Irid(o) Iridoptosis

Question 31

Eardrum, middle ear combining form

Answer 31

Myring(o) | Tympan(o)

Question 32

Eye combining form

Answer 32

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

Question 33

Ossicle combining form

Answer 33

Ossicul(o)

Question 34

Lens combining form

Answer 34

Phac(o), phak(o)

Question 35

White of the eye combining form

Answer 35

Scler(o)

Question 36

Darkness combining form

Answer 36

Scot(o)

Question 37

Unit of refracting power of a lens

Answer 37

Diopter

Question 38

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

Answer 38

Aerotitis media

Question 39

Loss of hearing

Answer 39

Anacusis

Question 40

Absence of a lens

Answer 40

Aphakia

Question 41

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

Answer 41

Astigmatism

Question 42

Loss of elasticity of the eyelid

Answer 42

Blepharochlasis Dermatochlasis -chlasis = slackening

Question 43

Nodular inflammation that usually forms on the eyelid

Answer 43

Chalazion

Question 44

Fatty cyst within middle ear

Answer 44

Cholesteatoma

Question 45

Double vision

Answer 45

Diplopia

Question 46

Excessive tearing

Answer 46

Epiphora

Question 47

Deviation of one eye inward

Answer 47

Esotropia

Question 48

Abnormal protrusion of eyelids

Answer 48

Exophthalmos | Exophthalmus

Question 49

Deviation of one eye outward

Answer 49

Exotropia

Question 50

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

Answer 50

Asthenopia

Question 51

Farsightedness; focusing behind the retina causing vision distortion

Answer 51

Hyperopia

Question 52

Any of various diseases caused by abnormally high eye pressure

Answer 52

Glaucoma

Question 53

Infection of a sebaceous gland of the eyelid;sty

Answer 53

Hordeolum

Question 54

Secretion of tears

Answer 54

Lacrimation

Question 55

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

Answer 55

Macular degeneration

Question 56

Elevated pressure within the cochlea

Answer 56

Meniere's disease

Question 57

Nearsightedness: Focusing in front of the retina causing vision distortion

Answer 57

Myopia

Question 58

Night blindness

Answer 58

Nyctalopia

Question 59

Excessive involuntary eyeball movement

Answer 59

Nystagmus

Question 60

Fungal infection of the external ear canal

Answer 60

Otitis Externa

Question 61

Inflammation of the middle ear

Answer 61

Otitis Media

Question 62

Impaired hearing

Answer 62

Paracusis

Question 63

Age related hearing loss

Answer 63

Presbyacusis

Question 64

Age-related diminished ability to focus or accomodate

Answer 64

Presbyopia

Question 65

Eye with an implanted lens after cataract surgery

Answer 65

Pseudophakia

Question 66

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

Answer 66

Retinitis pigmentosa

Question 67

Blind spot in vision

Answer 67

Scotoma

Question 68

Eye misalignment

Answer 68

Strabismus

Question 69

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

Answer 69

Trichiasis

Question 70

Removal of eyeball

Answer 70

Enucleation

Question 71

Use of ultrasound to break up and remove cataracts

Answer 71

Phacoemulsification

Question 72

Class of medication that causes contraction of pupil

Answer 72

Miiotic

Question 73

Class of medication that causes dilation of pupil

Answer 73

Mydriatic

Question 74

Instrument for determining eye refraction

Answer 74

Optomoter

Question 75

Pain in the tear sac

Answer 75

Dacryocystalgia