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Questions and Answers
What is the degree of hearing loss for a person who has difficulty understanding speech through the ear alone, benefits from hearing aid and lip reading?
In which type of hearing loss does the problem lie in the inner ear?
What is the classification of hearing loss that is acquired after birth?
Which environmental factor can cause adventitious hearing loss?
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What adaptation strategy involves allowing the child to choose a sitting place to take advantage of visual and auditory cues?
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What part of the ear is responsible for trapping sound waves?
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Which bones are part of the middle ear and amplify sound waves?
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What is indicated by the term 'hearing impairment'?
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What is used to categorize the severity of a hearing loss?
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What part of the ear is responsible for changing sound waves to electrical impulses?
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What degree of hearing loss is characterized by comprehension of auditory information being insufficient, even with the use of a hearing aid?
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Which type of hearing loss involves a problem in the outer and middle ear?
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What is the classification of hearing loss that is present before language acquisition?
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Which environmental factor is listed as a cause of adventitious hearing loss?
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What is the range of decibels for hard of hearing individuals who find understanding speech through the ear alone difficult but benefit from hearing aids and lip reading?
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What is the term for a full or partial loss of the ability to detect or discriminate sounds due to an abnormality associated with the physiology, anatomy, or function of the ear?
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What is the term used to indicate the quietest sound that can be detected, and is called the hearing threshold?
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What is the classification of the degree of hearing loss based on an audiological assessment or measurement?
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Which part of the ear is responsible for changing sound waves to electrical impulses that reach the brain through the auditory nerves?
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What is the term for the additional increase in volume required above the normal hearing threshold to compensate for the severity of a hearing loss?
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Study Notes
Hearing Loss Degrees and Types
- Difficulty in understanding speech through ear alone is indicative of moderate hearing loss.
- Mild to moderate hearing loss often allows benefits from hearing aids and lip reading.
- Problems in the inner ear typically relate to sensorineural hearing loss.
- The classification of hearing loss that occurs after birth is known as acquired hearing loss.
- Hearing loss present before language acquisition is classified as pre-lingual hearing loss.
Environmental Factors and Hearing Loss
- Adventitious hearing loss can result from environmental factors such as noise exposure.
- Other environmental causes include infections, ototoxic medications, and physical trauma.
Strategies and Ear Anatomy
- An adaptation strategy for children is to allow them to choose seating arrangements for optimal visual and auditory cues.
- The outer ear traps sound waves, playing a crucial role in hearing.
- The middle ear contains three small bones: the malleus, incus, and stapes, which amplify sound waves.
Understanding Hearing Impairment
- 'Hearing impairment' refers to any degree of reduced ability to detect or discriminate sounds linked to ear function, anatomy, or physiology.
- Hearing thresholds measure the quietest sound detectable, used to categorize the severity of hearing loss.
- Individuals classified as "hard of hearing" experience difficulty understanding speech via ear alone, typically falling within a range of 26 to 70 decibels.
Physiological Processes and Hearing Aid Use
- The inner ear is responsible for converting sound waves into electrical impulses.
- These electrical impulses travel to the brain via the auditory nerve.
- The term 'dynamic range' describes the additional volume increase needed above the normal hearing threshold to accommodate hearing loss severity.
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Description
Explore the anatomy of the ear, including the outer ear (Pinna, ear canal, and tympanic membrane), middle ear (ossicle bones), and inner ear (cochlear, auditory nerves, facial nerves). Learn about the hearing process, from sound wave trapping by the ear lobe to vibration of the tympanic membrane and amplification by the ossicle bones.
