What is the job of the pinna?
The pinna directs the sound into the auditory canal towards the eardrum
What makes up your outer ear?
The pinna, the auditory canal and the ear drum
Where does the ear drums vibrate and direct the sound waves into?
The ossicles
What are the ossicles?
What are there job?
The ossicles make up the middle ear. They are tiny bones that amplify the sound. They also make the oval window vibrate.
What does the vibration of the oval window do?
This passes the vibration on to liquid in the cochlea.
What does the cochlea contain?
Thousands of tiny hairs
What does your ear convert a sound wave into?
An electrical signal
What do you measure sound intensity in?
Decibels