Central hearing loss results from defects in the auditory tracts or centres in the brain. Several causes are associated with this condition and include traumatic injury, tumours, infections, blockage of blood vessels in the brain, and a progressive hearing loss that occurs with age known as presbyacusis.
I. Find synonyms in the text to the following words.
II. Match the term with definitions.
lacking the power of hearing or having impaired hearing
inflammation of the ear
progressive bilateral symmetrical age-related sensorineural hearing loss
a hereditary disorder causing progressive deafness due to overgrowth of bone in the inner ear
disease of unknown cause affecting the membranous labyrinth of the ear, causing progressive deafness and attacks of tinnitus and vertigo
a sensation of whirling and loss of balance, associated particularly with looking down from a great height, or caused by disease affecting the inner ear or the vestibular nerve
a ringing, hissing, or booming sensation in one or both ears, caused by infection of the middle or inner ear, a side effect of certain drugs, etc.
removing the stapes bone and replacing it with a micro prosthesis
creation of a small hole in the fixed stapes footplace and insertion of a tiny, piston-like prosthesis
III. Complete the table.
IV. Fill in the blanks with appropriate prepositions. Translate the text.
Otitis externa is an inflammation _______ the outer ear and ear canal. The inflammation can be secondary _____ dermatitis (eczema) only, with no microbial infection, or it can be caused ____ active bacterial or fungal infection. ____ either case, but more often with infection, the ear canal skin swells and may become painful and/or tender ____ touch. Swimming ____ polluted water is a common way to contract swimmer’s ear, but it is also possible to contract swimmer’s ear ____ water trapped ___ the ear canal after a shower, especially ____ a humid climate. Constriction ___ the ear canal from bone growth (Surfer’s ear) can trap debris leading ___ infection. Even without exposure ___ water, the use of objects such as cotton swabs or other small objects to clear the ear canal is enough to cause breaks ___ the skin, and allow the condition to develop. Once the skin ____ the ear canal is inflamed, external otitis can be drastically enhanced by either scratching the ear canal ____ an object, or by allowing water to remain in the ear canal ____ any prolonged length ___ time.
The two factors that are required _____ external otitis to develop are (1) the presence ____ germs that can infect the skin and (2) impairments ___ the integrity ____ the skin of the ear canal that allow infection to occur. If the skin is healthy and uninjured, only exposure _____ a high concentration of pathogens, such as submersion ____ a pond contaminated ____ sewage, is likely to set off an episode. However, if there are chronic skin conditions that affect the ear canal skin, such as atopic dermatitis, seborrheic dermatitis, psoriasis or abnormalities of keratin production, or if there has been a break _____ the skin _____ trauma, even the normal bacteria found in the ear canal may cause infection and symptoms of external otitis.
V. Match the beginnings and the endings of the sentences.
The vertigo patient perceives either that
and helps keep the pressure in your ear equalized.
Ménière’s disease most commonly affects people in their 40’s and 50’s,
the pain may be temporary or constant.
The Eustachian tube allows normal fluids to drain out of the middle ear,
if there is a history of persistent (chronic and recurrent) ear infections.
An earache can be a sharp, dull, or burning pain in one or both ears,
one of the tiny bony ossicles in the middle ear.
While there are different types of ear infections,
although individuals from 20 onwards may be affected.