Skip to main content
Create interactive lessons using any digital content including wikis with our free sister product
. Get it on the
Pages and Files
Accommodation and its importance
Anatomy and function of the human ear
Anatomy and Function of the Human eye
Detection of vibrations
Distribution of hair cells and the detection of sounds
Distribution, structure and function of the photoreceptor cells
Myopia and Hyperopia
Path of a sound wave
Production of sound
Range in electromagnetic radiation
Refraction of light
Refractive power of the lens
Rhodopsin in rods
Sound as a form of communication
Add "All Pages"
Path of a sound wave
outline the path of a sound wave through the external, middle and inner ear and identify the energy transformations that occur.
The vibrations that produce sound travel through a delicate process before reaching the hair cells in the organ of corti. The process begins with the collection of sound waves by the pinna which then travels down the auditory canal where it reaches the tympanic membrane. Once her the vibrations cause the tympanic membrane to vibrate at he same frequency as the sound. From here the three ossicles bones begin to vibrate and amplify the vibrations. This then causes the oval window to vibrate which also cause the fluid within the cochlea to vibrate. The vibrations are then recieved by the round window and proceed down to the organ of corti where the hair cells bend causing the release of neurotransmitter into the synapses and the message is carried to the brain via the auditory nerve where it is interpreted.
Figure 20.1 Represents the process a sound wave travels in order to be heard but the ear and interpreted by the brain.
is the video above which illustrates the path of sound through the ear in order for it to be heard by a human.
Aubusson, Eileen Kennedy Peter.
Biology in Context: the Spectrum of Life
. Victoria : Oxford Uni. Press., 2001. Print.
NSW HSC Online
. N.p., n.d. Web. 25 June 2010. <
"YouTube - Travel Inside the Ear ."
YouTube - Broadcast Yourself.
. N.p., n.d. Web. 29 June 2010. <
help on how to format text
Turn off "Getting Started"