Module 1.6c

Question 1

What is the Pinna?

Answer 1

Outer structure of the ear, used to funnel sounds into the ear, located in the outer ear.

Question 2

What is sound localization

Answer 2

The ability to detect and tell the direction from which a sound is originating.

Question 3

How is sound localized?

Answer 3

Sound waves strike one ear sooner and more intensely than the other.

Question 4

What is Audition?

Answer 4

Sense of act of hearing.

Question 5

What is amplitude?

Answer 5

Perceived loudness of sound. The greater the amplitude= Loud
The smaller the amplitude= Softer

Question 6

What is amplitude measured in?

Answer 6

Decibels.

Question 7

What is pitch?

Answer 7

The quality allowing us to determine if its a high or low sound.
High Frequency= High Pitched sound
Low Frequency= Low Pitched sound

Question 8

How is pitch measured?

Answer 8

In hertz, through frequency.

Question 9

What is the auditory canal?

Answer 9

what is sending the sound waves from the Pinna to the eardrum

Question 10

Where is the auditory canal located?

Answer 10

In the temporal bone between the inner ear and temporal lobe

Question 11

What is the eardrum (Tympanic Membrane)?

Answer 11

Thin layer of tissue that separates outer ear from middle ear. When sound reaches the eardrum its causes vibrates that domino throughout the ear.

Question 12

What is an ossicles, and what are the three that you have in your ear?

Answer 12

ossicles are the bones located in the middle ear. These are the Hammer, Anvil, and Stirrup.

Question 13

What is the function of the Hammer?

Answer 13

transmits the sound vibrations from the eardrum to the anvil.

Question 14

What is the function of the Anvil?

Answer 14

transmits the vibrations from the Hammer to the stirrup.

Question 15

What is the oval window?

Answer 15

connective tissue membrane located at the end of the middle ear and the beginning of the inner ear.

Question 16

What is the function of the oval window?

Answer 16

vibrates due to incoming vibrations and transmits sound to the hair cells making them move back and forth. Jostles the fluid in the cochlea

Question 17

What is the cochlea?

Answer 17

Snail shaped tube located in the inner ear

Question 18

What is the function of the Cochlea?

Answer 18

uses the cochlear fluid to trigger neural impulses. Does transduction.

Question 19

What is the basilar membrane?

Answer 19

main mechanical element of the inner ear.

Question 20

What is the function of the basilar membrane?

Answer 20

vibrating and moving the haircells

Question 21

What is the Auditory Nerve?

Answer 21

the conversion of the axons of adjacent nerve cells

Question 22

What is the function of the auditory nerve?

Answer 22

Carries the neural messages to the thalamus, the thalamus then carries it to the temporal lobe.

Question 23

What is conduction hearing loss?

Answer 23

Less common form of hearing loss caused by damage to the mechanical system that conducts sound waves to the cochlea.

Question 24

What causes conduction hearing loss?

Answer 24

Damage to the ossicles or the fact that the ossicles are becoming brittle due to old age.

Question 25

What is sensorineural hearing loss?

Answer 25

the most common form of hearing loss caused by damages to the cochleas receptor cells or to the auditory nerve; also called nerve deafness.

Question 26

What causes sensorineural hearing loss?

Answer 26

Listening to music way to loudly.

Question 27

When is a cochlear implant used?

Answer 27

Used in sensorineural hearing loss

Question 28

How does a cochlear implant work?

Answer 28

It translates the sound into electrical signals that when wired into the cochlea's nerve, convey sound information to the brain.

Question 29

What is place theory?

Answer 29

Linking the pitch we hear with the place where the cochlea's membrane is stimulated.

Question 30

When is place theory used?

Answer 30

For High Frequencies

Question 31

What is Frequency Theory?

Answer 31

the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone, thus enabling us to sense its pitch.

Question 32

When is Frequency theory used?

Answer 32

For Low Frequencies

Question 33

What is the volley principle?

Answer 33

alternate firing of neural cells.

Question 34

What theory is the volley principle associated with?

Answer 34

Frequency theory.

Question 35

What is the maximum to reach before the volley principle happens?

Answer 35

If the frequency hits over 1000 waves per second.

Question 36

What is the middle ear?

Answer 36

the chamber between the eardrum and the cochlea

Question 37

What is the role of the middle ear?

Answer 37

transferring sound vibrations from your eardrum to your inner ear

Question 38

What is the outer ear?

Answer 38

the part of your ear that is visible

Question 39

What is the role of the outer ear?

Answer 39

to collect sound waves and channel them into the ear canal, so the sound can be amplified

Question 40

What is the inner ear?

Answer 40

innermost part of ear containing the cochlea semicircular canals and vestibular sacs

Question 41

What is the role of the inner ear?

Answer 41

the last stop that sound waves make.