4.3 Flashcards
1
Q
How do we hear sound?
A
Sound enters our outer ear (pinna), travels through the ear canal and vibrates the eardrum. These vibrations are passed on to the ear bones (ossicles) which relay the energy to the cochlea. Vibrations within the cochlea send an electrical signal through the auditory nerve to the brain.
2
Q
What are the ear bones (in order)?
A
The ear bones in order are the hammer (maleus) anvil (incus) and stirrup (stapes)
3
Q
Where are the semicircular canals connected to?
A
The semicircular canals are connected to the cochlea. These are involved in balance
