Lesson 1.3 Test prep

sound

a form of energy that travels in waves

Two main characteristics of sound

pitch and intensity

Pitch 

determined by a sound frequency or how rapidly the sound waves vibrate each second

What is Frequency measured in?

vibrations per second or Hertz(Hz)

What does Higher frequency mean?

 more frequently the waves vibrate equalling in higher pitch,

What frequency sound wave is this?

High frequency sound wave

What frequency sound wave is this?

Low frequency sound wave

What is sound inesity measured in?

deciels (dB)

on what scale is the range of sound intensity that a human can register is measured in?

the decibel scale is a logarithmic scale (. For example, a sound of 20 dB is one hundred times louder than 0 dB; a sound of 30 dB is one thousand times louder than 0 dB)

The decibel scale begins at ___

0 dB

a whisper has an intensity of around ____ wheres the music at a rock concert has an intensity around ____

40 dB

140 dB

Frequent or prolonged exposure to sounds with intensities above ___ can _____ hearing receptors adn cause _____

85 dB

damage hearing receptors

permanent hearing loss

The sound wave moves quickly and results in a high pitched sound

High Frequency

The sound wave moves slowly and results in a low pitched sound

low frequency

The sound wave is tall and results in a loud sound

High amplitude

the sound wave is short adn results in a quiet sound

low amplitude

1

Sound waves enter the ear adn travel through the auditory canal. THease waves cause vibrations in the eardrum

2

THe vibration of the eardrum causes the bones in teh middle ear to move back and forth

3

The inner end of the stapes moves in and out of the voal window at the same rate the ear drum is vibrating

4

The movement against the Oval window causes motion in teh fluid that fills the cochlea

5

The movement of the fluid causes the hairs in teh fluid to move. This movement stimulates the attached cell to send a tuny impulse along the auditory nerve to teh brain

6

The impulse translated into sound by the brain

1

pinna

2

malleus

3

Incus

4

semi circular canals (Vestivular Appartatus)

6

Auditory nerve

7

cochlea

8

Eustachian Tube

10 

oval window

12

Tympanic Membrane

13

external auditory canal

What is the difference between sensorineural hearing loss and conductive hearing loss?

Conductive hearing is loss is caused by porbelsm with the outer or middle ear, and Sensorineural hearing loss is caused by damage to the inner ear, or auditory nerve.

What does the Rinne test interpret?

Interpret’s hearing loss between sound transmission through air conduction versus bone conduction

0-20 dB

Normal hearing loss

21-40 dB

Mild hearing loss

41-55 dB

Moderate hearing loss

56-70 dB

moderate to severe hearing loss

71-90 dB

Severe hearing loss

>90 dB

profound hearing loss

what paitient is is? What kind of hearing loss do they have?

Paitient 2

mild hearing loss in the right ear

what paitent is this? and what hearing loss do they have?

Patient 1, sensoneural hearing loss

What patient is this? what kind of hearing loss is this?

Patient 4, mild to moderate hearing loss

What patient is this? what kind of hearing loss is this?

Patient 8, 

(L) moderate hearing loss

(R) normal hearing

asymmetrical bilateral heairng loss

Cochlear implant but patient is too old to retrain how to hear

What patient Is this? what kind of hearing loss doe they have?

Patient 5,

bilateral hearing loss

What patient is this? what kind of hearing loss do they have?

patient 10,

(L) mild hearing loss

(R) moderate hearing loss

What Paitient is this? kind of hearing loss do they have?

Paitient 6,

Bilateral severe hearing loss (severe to normal)

What paitient is this? what treatment method do they need?

Patient 7

(L) mild to moderate hearing loss

Hearing aid on left ear, and custom musician ear plugs

What patient is this? What kind of hearing loss is this?

Patient 3

(L) moderate hearing loss

(R) normal hearing

What patient is this? What kind of hearing loss do they have??

Patient 9

(R) normal hearing

(L) mild hearing loss

unilateral hearing loss

How effective are cochlear implants in restoring hearing? does the implant work the save way for all people?

Cochlear implants can be effective in being able to restore hearing but it does not fully bring back a person’s hearing. This implant does not work the same way for all people because it depends on the age, how wella dapted they can be with the implant

how does the use of assistive biomedical technology in children different form the use of assistive biomedical technology in adults?

The use of assistive biomedical technology in children differs front eh use of assistive biomedical technology in adults becuase in children they would have a specific technology their whole life so they have the chance to be able to learn adn adapt. WHile in the other rhadn, adults it would take them more time get used to it and they will have to relearn certain things.

Should John and Juanita give Samantha a cochlear implant? defend your decision with the evidence you have gathered in this activity?

They should because it can give many opportunities for her as she grows up, also with having a deaf mother she should still learn sign language but should also get an implant. Since she is so young, it would work the best for rher and she would most likely be able to pass as hearing by time she is a toddler.