Unit 4 (Modules 20-21) Flashcards
senses & ear anatomy
Soundwaves first hit what part of the ear? What does the soundwaves cause that part to do? (2)
(2) = 2 parts/answers
Module 20
- the eardrum
- causes it to vibrate
The middle ear is composed of how many tiny bones? What are the names of each tiny bone? (2)
(2) = 2 answers/parts
Module 20
- 3
- hammer (malleus)
- anvil (incus)
- stirrup (stapes)
What is the anatomy of the middle ear? What parts do the middle ear contain? (2)
(2) = 2 answers/parts
Module 20
- a chamber between the eardrum and cochlea
- contains eardrum, cochlea (hammer, anvil, stirrup)
What happens after the eardrum vibrates?
Module 20
the middle ear transmits the vibrations (soundwaves)
What happens after the middle ear transmits the soundwaves just received? (What do soundwaves hit next?) What does the next part of the ear do in response to the transmitted soundwaves? (2)
(2) = 2 answers/parts
Module 20
- [to the] cochlea
- cochlea vibrates transmissions
During the process of hearing/soundwave progression through the ear, after the sound wave reaches the cochlea where does the soundwave travel to next?
Module 20
[the] inner ear
After the soundwaves reach the inner ear, what does the inner ear do and where does the soundwaves go to next? How does the next part of the ear respond/react? (3)
(3) = 3 answers/parts
Module 20
- inner ear fluids shake
- basilar membrane
- ripples occur in the basilar membrane
After the soundwaves hit the basilar membrane and it ripples, what is the next thing the soundwaves reach? What happens when the soundwaves reach the next part of the ear? (2)
(2) = 2 answers/parts
Module 20
- hair cells
- the hair cells bend and trigger impulses/electrical signals
After the hair cells bend and trigger an electrical signal/impulse, where does the electrical signal/impulse go? What does the next part do after receiving the signal? (2)
(2) = 2 answers/parts
Module 20
- auditory nerve
- nerve carries the signal
During a regular soundwaves’ path, after the auditory nerve carries the electrical signal from the hair cells, where is the signal carried off too? What does this part do in response to receiving the electrical signal? (2)
(2) = 2 answers/parts
Module 20
- [the] thalamus
- thalamus processes the electrical signal
After the thalamus processes the electrical signal in a soundwave sequence, where does the electrical signal reach next? What does this part or region do? (2)
(2) = 2 answers/parts
Module 20
- [the] auditory cortex/temporal lobe
- makes you hear!
The chamber between the eardrum and cochlea contianing three tiny bones (hammer, anvil and stirrup) that concentrates the vibrations of the eardrum on the cochlea’s oval window is called what?
Module 20
[the] middle ear
A coiled, bony fluid-filled tube in the inner ear that helps sound waves travel through the cochlear fluid trigger nerve impulses is what ear part?
Module 20
cochlea
The innermost part of the ear, containing the cochlea, semicircular canals and vestibular sacs is called what?
Module 20
[the] inner ear
The inner ear contains what three things/parts?
Module 20
- [the] cochlea
- semicircular canals
- vestibular sacs
Another word or synonym for the word amplitude is called what?
Module 20
height
Amplitude determines what with our perception on soundwaves?
Module 20
[our] loudness
Another word or synonym for the word frequency when dealing with soundwaves is what?
Module 20
frequency
Our frequency determines what in the soundwave process?
Module 20
determines the pitch we experience
The number of complete wavelengths that pass a point in a given time (for example: per second) is called what?
Module 20
[our] frequency
A tone’s experienced highness or lowness which depends on the frequency is called what?
Module 20
[our] pitch