Ears

Question 1

3 parts of the ear

Answer 1

Outer
Middle
Inner

Question 2

2 parts of the Outer ear

Answer 2

Auricle (pinna)

External acoustic meatus (ear canal)

Question 3

3 parts of the Middle ear

Answer 3

The Malleus (hammer)
Incus (anvil)
Stapes (stirrip)

Question 4

3 parts of the inner ear (labyrinth)

Answer 4

Cochlea
The semi-circular canals
The vestibulocochlear nerve

Question 5

Conductive hearing impairment

Answer 5

Reduced transmission of sound waves due to an abnormality of the outer or middle ear

Question 6

Common Causes of Conductive hearing impairment

Answer 6

Impacted earwax
Foreign body
Infection
Barotrauma (Scuba diving/Flying)
Injury to tympanic membrane
Otosclerosis (Abnormal bone growth in the Ossicles).

Question 7

Sensorineural hearing impairment

Answer 7

Disorder of the nerves of the inner ear or the central nervous system e.g. the cochlea, the vestibulocochlear nerve or the auditory area of the cerebrum

Question 8

Common causes of Sensorineural hearing impairment

Answer 8

Presbycusis (Normal hearing loss due to ageing)

Long term exposure to excessive noise

Congenital disorders

Meniere’s disease (Inner ear condition causing vertigo, hearing loss and tinnitus)

Ototoxic drugs (drugs that can cause hearing loss, i.e. chemotherapy, diuretics)

Systemic infections such as mumps, herpes, meningitis, syphilis.

Question 9

Common conditions of the ear nose and throat

Answer 9

Infections

Excessive ear wax

Hearing Loss

Nose Bleeds (Epistaxis)

Sinusitis

Sore Throat.

Question 10

Common drugs used for ears

Answer 10

Paracetamol 1g
Ibuprofen 400mg
Aspirin 300mg
Olive Oil drops.