| A | B |
|---|
| reflect | to bend back |
| absorb | to take in |
| Parts of Outside Ear | Pinna, Ear Canal |
| Pinna | outside part of ear on side of head. Acts as a funnel to catch sound waves and pass down the ear canal |
| ear canal | tunnel through which sound waves travel to reach middle parts of ear. |
| Middle Ear | eardrum, hammer, anvil, stirrup |
| eardrum | membrane right at the beginning of the middle ear, that is stretched across the ear canal and vibrates when sound hits it. |
| hammer | first set of three tiny bones that move when the eardrum vibrates |
| Anvil | a tiny bone, which when touched by the hammer-bumps into the last tiny bone |
| Inner Ear | Cochlea, auditory nerve |
| Cochlea | a bony, fluid-filled spiral that receives sound waves when the stirrup presses against it. It translates the waves into something the brain can understand |
| Auditory Nerve | nerve that carries the signals of sound waves from the cochlea to the brain. |
| Semicircular Canals | three ducts in the inner ear that control our ears' balance of sound. |
