Hearing
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What is the organ of hearing?
The ear
What are the functions of the ear? 2
Hearing Balance
Name the three sections of the ear.
The outer ear The middle ear The inner ear
What is the inner ear filled with?
A liquid called lymph
What is the outer and middle ear filled with?
Air
What part of the ear is filled with lymph?
The inner ear
What parts of the ear are filled with air?
The outer and middle ear
What causes sound?
Vibrations in the air
What is the pinna? 2
Part of the outer ear made mostly of cartilage It helps to collect and channel vibrations into the auditory canal
What section of the ear is the pinna a part of?
The outer ear
What is the pinna mostly made of?
Cartilage
What is the function of the pinna?
It helps to collect and channel vibrations into the auditory canal
The pinna helps collect and channel vibrations into what part of the ear?
The auditory canal
What part of the ear helps to collect and channel vibrations into the auditory canal?
The pinna
What is the auditory canal? 2
The tube which carries vibrations to the eardrum Secrets wax outside of the eardrum to trap dust particles and protect the ear
What does the auditory canal carry to the eardrum?
Vibrations
The auditory canal carries vibrations to what part of the ear?
The eardrum
What does the auditory canal secrete?
Wax
Where does the auditory canal secrete wax?
Outside the eardrum
What is the function of wax?
To trap dust and protect the ear
What is the eardrum?
A small, tightly stretched membrane which separates the outer ear form the middle ear and vibrates as a result of the vibrations that reach it.
Describe the eardrum.
A small, tightly stretched membrane
What is the function of the auditory canal? 2
Carries vibrations to the eardrum Secretes wax
What is the function of the eardrum? 2
Separates the outer and middle ear Vibrates when the vibrations reach it