Quiz today huhu Flashcards
Hearing is affected by three physical properties
Height/Amplitude
Frequency
Purity
“Loudness”
the taller the wave, the louder the sound
Height / Amplitude
YOUR EARDRUM WOULD BURST
.
160 dB
how many waves occur in a given period of time.
frequency
how many times the wave cycle per second.
Hertz (Hz)
complexity of the wave.
unique tonal quality = “timbre,” how many
frquencies are present in the wave.
pURITY
Collect and funnel sounds into the passage called auditory canal.
pINNAE
once inside the canal, sound vibrations travel to the
eardrum
bones of the middle ear: they vibrate and amplify the waves so that they have more than 20 times the energy they had entering the ear.
Hammer, anvil and stirrup
The hammer hits the ——-, and the ——— moves the stirrup.
Anvil
The vibration of the ———— in turn sets into motion a series of important changes in the ear.
stirrup
play a key role in maintaining a sense of balance
semicircular canals
The vibration in the ——— send movement through the fluid-filled cavity of the cochlea.
oval window
A bony tube, curled like a snail’s shell and filled with fluid.
Cochlea
runs through cochlea
basilar membrane
The ———– synapse with the auditory neurons that transmit the sound impulses to the thalamus in the brain.
hair cells
The hair cells synapse with the ———– that transmit the sound impulses to the thalamus in the brain.
Auditory neurons
The hair cells synapse with the auditory neurons that transmit the sound impulses to the ———— in the brain.
thalamus
The hair cells synapse with the auditory neurons that transmit the sound impulses to the thalamus in the brain.
From there, the neural impulses are relayed to the ———- and the ———-, home of the auditory cortex
brain stem, temporal lobes
The auditory pathways go from the ——- to the ———-in the brain stem and from there to the medial (middle) geniculate nucleus (MGN) of the thalamus.
cochlea, inferior colliculus
