Ch. 13 Vocab Flashcards
Number of times a cycle of vibration repeats itself within a second
Frequency
Study of sound as a physical event
Acoustics and its components
Sensory experience related to changes in frequency
Pitch
Sound related to amplitude
Intensity
Extent of molecular displacement
Amplitude
Sensation related to physical intensity of the sound
Loudness
Study of hearing, disorders, and measurement and management
Audiology
Special training in the assessment of hearing disorders
Audiologist
Includes ear and its structures (outer, middle, inner)
Peripheral auditory system (p. 198)
Certain portions of the brain and the brainstorm
Central auditory system (p. 198)
Sound travels through the medium of air
Air conduction
Sound is transmitted by vibrating bones of the skull
Bone conduction testing
Hard of hearing and deaf
Hearing impairment
The sound is conducted to the middle or inner ear is diminished
Conductive hearing loss
Causes of conductive hearing loss
Otitis media, and Otosclerosis
3 varieties of otitis media:
Serous, acute, a and chronic
The middle ear is inflamed and filled with fluid, and the Eustachian tube is blocked
Serous
Middle ear infection has a sudden onset and a quick build up of fluid, causing pain
Acute
Chronic middle ear infections result in ruptured eardrum and possibly permanent hearing loss
Chronic
Infection of the middle ear
Otitis media
The hair cells in the cochlea or the acoustic nerve may be damaged, preventing the brain from receiving the neural impulses of sound
Sensorineural hearing loss
Disease of the bones of the middle ear
Otosclerosis
Sensorineural hearing loss known causes
Ototoxic drugs, noise, infections, maternal rubella, heredity, birth defects, anoxia, acoustic neuroma, old age, Ménière’s disease
