We are studying the parts of the ear. Below is the vocabulary students are responsible for knowing.
Students will be assessed on Thursday.
Outer Ear:
o Pinna: catches
sound; outside your body
o Ear Canal:
sends sound to the ear drum; tube; connects the pinna to the middle ear
Middle Ear:
o Ear Drum:
thin skin (membrane); end of ear canal; vibrates
o Hammer:
bone; connected to the ear drum and the anvil
o Anvil:
bone; connected to the hammer and the stirrup
o Stirrup:
bone; connected to the anvil and cochlea; the 3 bones make the sound louder
Inner Ear:
o Cochlea:
connected to the stirrup and auditory nerve; filled with liquid and tiny hair
cells; sound travels through the liquid and the hairs move
o Auditory
Nerve: connected to cochlea and brain; sends sound signals to the brain
o Semi-Circular
Canals: balance; do not help in hearing
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