Sense Of Hearing/equilibrium

Front 1

What does the outer ear called?

Back 1

pinna

Front 2

What is the substance secreted from the portion of the outer ear? What does it do/

Back 2

earwax, helps guard against the entrance of foreign materials, such as air pollutants

Front 3

The portion of the ear that begins at the tympanic membrane and ends at a bony wall contains 2 small openings, what are they? What structures do they touch?

Back 3

oval window and the round window, oval window touches the stapes.

Front 4

The portion of the ear that extends from the middle ear to the nasopharynx allows us to do what?

Back 4

permits equalization of air pressure

Front 5

What separates the outer and inner ear?

Back 5

Tympanic membrane

Front 6

Where is fluid found in the air?

Back 6

just the inner ear.

Front 7

The portion of the ear that contains air also contains 3 bones, what are these bones?

Back 7

(middle ear) malleus, incus, and stapes

Front 8

the potion of the ear that has air run through it contains what 3 important structures for hearing?

Back 8

oval and round windows, auditory ossicles, and the auditory/eustachian tube

Front 9

What damage will professional divers often expereince?

Back 9

barrel trauma

Front 10

What is the pop associated with the portion of the ear that extends from the middle ear to the nasopharynx?

Back 10

open and clsoing of the eustachian tube

Front 11

What is the device used to look at the portion of the ear that separates the outer ear from the middle ear?

Back 11

otoscope

Front 12

In diseases of the upper respiratory tract, what part of the ear will also be impacted?

Back 12

middle ear

Front 13

what are the 3 portions of the inner ear?

Back 13

semicircular canals, the vestibule, and the cochlea

Front 14

How does the portion of the ear that extends from the nasopharynx to the middle ear allow air to be equlized?

Back 14

allows air from the throat to enter so air pressure on both sides of the tympanic membrane can be equlized.

Front 15

What is associated with the inner ear?

Back 15

fluid, semicircular canals, vestibule, cochlea, balance, equilibrium, vestibular nerve, cochlear nerve, all the structures associated with that.

Front 16

what parts of the ear would standing on a ship and going in an up and down movement be associated with?

Back 16

saccule, radeocilia, ampula, gravitational equilibrium, increase frequency of nerve impulses, cerebellum, inner ear.

Front 17

Vibrations produced by what structure are responsible for being drawn into the spiral portion and return to what structure?

Back 17

stapes, they return to the round window

Front 18

If the spiral is examined in cross section, what 3 canals would you see?

Back 18

cochlear canal, vestibular canal and the tympanic canal

Front 19

Successive vibrations of molecules transmit to the large tympanic membrane the successive chain of events following this event causes the stapes to hit the small oval window. What is this transfer of pressure referred to? why does it work? What does it cause the vibrations to do?

Back 19

Amplification system in the conductive portion of the ear, works by causing the fluid within the cochlea to vibrate. amplifies it 20X

Front 20

In a cross section of the cochlea, which canal contains the receptors which translates vibrations ito nerve impulses to the brain?

Back 20

cochlear canal

Front 21

What are both names of the specialized structure situated on the basilar membrane?

Back 21

Organ of corti or the spiral organ

Front 22

In a cross sectional view of the cochlea, the canal in the middle has an important gelatinous material that consists of little hair cells, what is it called?

Back 22

(middle canal of the cochlea/ cochlear canal) tectorial membrane

Front 23

The middle cnaal of the cochlea contains which important organ responsible for translating vibrations into nerve impulses to the brain?

Back 23

(cochlear canal) contains the organ of corti or the spiral organ

Front 24

How is the organ of corti stimulated?

Back 24

By movement of the basilar membrane due to the vibrational waves made by the stapes that is sent through the cochlea.

Front 25

Where do the hair cells sit in the structure located in the middle portion of the cochlear canal? What are these hair cells called? What structure do these hair cells connect with or are they embedded in?

Back 25

basilar membrane, stereocilia are embedded in the tectorial membrane

Front 26

What are the actual nerve impulses generated by? What structure do they lie in? In what canal?

Back 26

radiocilia, organ of corti (spiral organ), in the cochlear canal/duct

Front 27

What triggers the hair cells to fire the nerve impulse?

Back 27

When they bend due to movement of the basilar membrane and squishing against the tectorial membrane above it, it causes the hair cells to fire and the cochlear nerve takes it to the brain.

Front 28

When the stapes strikes the membrane of the oval window, what fluid filled structures do vibrations pass through? What type of pressure does this cause, where does this pressure hit? What does all of this cause?

Back 28

vestibular canal the the tympanic canal, undulating waves of pressure to be transferred to the round window and it bulges. The middle chamber (cochlear canal) and the organ of corti to be disturbed.

Front 29

If a tuba was played, what portion of the cochlea would vibrate?

Back 29

apex.

Front 30

If a bell or whistle was sounded, what portion of the cochlea would vibrate?

Back 30

near the base (beginning)

Front 31

How can it happen that you can be deaf to certain pitches?

Back 31

Because pitch sensation we experience depends upon which region of the basilar membrane vibrates and which area of the auditory cortex is stimulated.

Front 32

What portion of the brain interprets sound?

Back 32

auditory cortex in the temporal lobe.

Front 33

What are the action potentials located in the ear called?

Back 33

mechanoreceptors

Front 34

The keys of the piano are located in what area of the ear?

Back 34

in the central canal in the organ of corti.

Front 35

What is the tone of a sound believed to be based on?

Back 35

The brain's interpretation of the distribution of the hair cells stimulated

Front 36

What is volume due to in the ear?

Back 36

function of the amplitude (strength of sound waves)

Front 37

Loud noises cause what?

Back 37

fluid within the vestibular canal to exert more pressure and the basilar membrane to vibrate to a greater extent.

Front 38

Lg stimuli cause more what?

Back 38

frequency of action potentials or mechanoreceptors

Front 39

What are mechanoreceptors?

Back 39

sensory receptor that responds to mechanical pressure or distortion

Front 40

ARTICLE: What do docs say cause young ears to go old? What is the name for deafness caused by these items? What does this diagnosis mean?

Back 40

cell phones and music players, noise-induced hearing loss, it means losing the ability to hear higher frequencies, evidenced at times by mild ear-ringing or trouble following conversations in noisy situations

Front 41

Article: According to the article "Docs ay earphones..." What condition would cause the base of the cochlea to stop responding?
What is the name of the condition that causes internal ringing or even the sound of whooshing or buzzing in the ears?

Back 41

noise-induced hearing loss, tinnitus

Front 42

Article: What is the name of the condition caused by internal ringing ro the sound of whooshing or buzzing in the ears?

Back 42

tinnitus

Front 43

Article: what do dr's recommend the percentage of the volume you should listen to should be?

Back 43

60% of the its potential volume for an hour a day

Front 44

What is the top fluid-filled chamber in the choclea? bottom?

Back 44

vestibular canal, tympanic

Front 45

What structures does the cochlear nerve transmit impulses to and from what?

Back 45

to the auditory cortex from the organ of corti