Lesson 1.3 The Aftermath: Hearing Loss Flashcards
(9 cards)
What is an audiogram?
A graphic representation of the relation of vibration frequency and the minimum sound intensity for hearing.
What is a cochlear implant?
An electrical prosthetic device that enables individuals with sensorineural hearing loss to recognize some sounds and that consists of an external microphone and speech processor that receive and convert sound waves into electrical signals which are transmitted to one or more electrodes implanted in the cochlea where they stimulate the auditory nerve.
What is conductive hearing loss?
Hearing loss or impairment resulting from interference with the transmission of sound waves to the cochlea.
What is a hearing aid?
An electronic device usually worn by a person for amplifying sound before it reaches the receptor organs.
What is the inner ear?
The essential part of the vertebrate organ of hearing and equilibrium that includes the vestibule, the semicircular canals, and the cochlea.
What is the middle ear?
The intermediate portion of the ear containing a chain of three ossicles that extends from the tympanic membrane to the oval window and transmits vibrations to the inner ear.
What is the outer ear?
The outer visible portion of the ear that collects and directs sound waves toward the tympanic membrane by way of a canal which extends inward through the temporal bone.
What is sensorineural hearing loss?
Hearing loss or impairment resulting from problems with the auditory nerves.
What is sound?
Mechanical energy that is transmitted by longitudinal pressure waves in a medium (such as water or air).
