Unit 3 - Ear

Question 1

ot/o
auricul/o
aur/o

Answer 1

ear

Question 2

myring/o

Answer 2

tympanic membrane

Question 3

salping/o

Answer 3

auditory tube; eustachian

Question 4

cochle/o

Answer 4

cochlea

Question 5

acous/o

Answer 5

hearing

Question 6

audi/o

Answer 6

hearing; sense of hearing

audiogram - record of sense of hearing

Question 7

audit/o

Answer 7

hearing

Question 8

-cusis

Answer 8

hearing

presbycusis - diminished hearing in old age

Question 9

-otia

Answer 9

ear condition
macrotia - large ears
microtia - small ears

Question 10

otomycosis

Answer 10

abnormal condition of ear & fungus

Question 11

myringotomy

Answer 11

cutting of tympanic membrane

Question 12

myringitis

Answer 12

inflammation of tympanic membrane

Question 13

otopyorrhea

Answer 13

py/o = pus

flow or discharge of pus from ear

Question 14

ossiculoplasty

Answer 14

surgical repair of ossicle

Question 15

audiogram

Answer 15

record of hearing test

Question 16

audiometer

Answer 16

measures hearing

Question 17

audiometry

Answer 17

process of recording hearing

Question 18

otoscopy

Answer 18

visual examination of ear w/otoscope

Question 19

AD

Answer 19

right ear

Question 20

AS

Answer 20

left ear

Question 21

AU

Answer 21

both ears

Question 22

ENT

Answer 22

ear, nose and throat

Question 23

EENT

Answer 23

eyes, ear, nose and throat

Question 24

outer ear includes:

Answer 24

pinna (auricle)
auditory canal (external auditory meatus) - produces cerumen that lubricates and protects the ear

Question 25

middle ear includes:

Answer 25

Tympanic membrane
Ossicles - 3 small bones
1. malleus
2. incus
3. stapes (staped/o - middle ear bone)
Oval window - separates middle ear from inner ear
Eustachian Tube - leads from middle ear to pharynx

Question 26

inner ear includes:

Answer 26

“labrinth”

• Cochlea -
  1. Auditory liquids (perilymph, endolymph, vibrations travel thru liquids
  2. Organ of Corti - sensitive auditory receptor
• Auditory Nerve Fiber - leads to brain for hearing
• Function of Vestibule - connects cochlea to 3 semicircular canals for balance
• Organ for Equilibrium - semicircular canals contain 2 membranous sacs - SACCULE and UTRICLE

Question 27

Types of Deafness

Answer 27

1. Conduction deafness - impairment of middle ear ossicles and membranes that transmit sound waves into the cochlea (sound never got there)
2. Nerve deafness - impairment of the cochlea or auditory nerve
3. Noise induced deafness - headphones; loud noises

Question 28

otitis media

Answer 28

infection by staphylococcus or streptococcus

Question 29

tinnitus

Answer 29

ringing sound in the ear

symptom - not disease

Question 30

vertigo

Answer 30

dizziness

Question 31

Meniere’s Disease

Answer 31

disorder of the inner ear marked y elevated endolymph pressure. Symptoms include tinnitus & vertigo & loss of hearing

Question 32

otosclerosis

Answer 32

bone growth around oval window & stapes leading to inner ear causing improper conduction of vibration. Correct w/stapedectomy