13 Questions
What is the definition of sound pressure level?
The logarithm of the ratio of a given sound pressure to the reference sound pressure in decibels
What is the function of the outer ear part called 'Pinna'?
Collects sound and acts as a funnel to amplify sound
What does the inner ear part called 'Cochlea' do?
Transmits sound vibrations into nerve impulses
What does the term 'mechanoelectrical transduction' refer to?
The conversion of sound into electrical signals in the inner ear
What is the speed and properties of sound waves determined by?
Density and stiffness of the material
What is the definition of sound intensity?
The sound power per unit area
What is the main function of the auditory canal?
Protects the eardrum from shocks and prevents harmful items from entering the ear canal
What is the function of the tympanic membrane?
Transfers the sound that comes from the air into the ossicles of the middle ear
What is the resonant frequency of the middle ear?
1000 Hz
What is the role of the Eustachian tube in the middle ear?
Equalizes pressure between the middle ear and the atmosphere
What is the main function of the stapes in the middle ear?
Reduces sound striking the relatively large tympanic membrane
What is a function of the malleus in the middle ear?
Long handle attached to the eardrum
What is a function of the incus in the middle ear?
Bridge bone between the malleus and stapes
Test your knowledge about the speed and properties of sound waves, sound pressure, intensity, and the process of hearing in the human ear, including the functions and physical perspectives of the outer, middle, and inner ear. Learn more about the air medium and how sound waves are interpreted by the brain.
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