Physical stimuli are transformed into sensations through our senses, allowing us to communicate with others. In addition to hearing, our ears contain balance and movement sensors.
Vibrations cause sound waves to travel to our ears; strong vibrations have greater intensity. If the sound frequency is high, pitch increases. Dolphins and bats can hear ultrasonic sounds.
The ear contains the external ear, tympanic cavity, and inner ear. Sound waves strike the tympanic membrane which transfers it to the malleus, incus, and stapes bones. Vertigo occurs when the brain receives conflicting signals from the ear and the eye.
Humans can communicate and enjoy music because of our sense of hearing. Noises above 100 decibels are annoying; prolonged exposure to noise can result in partial deafness.
Vibrations cause sound waves to travel to our ears; strong vibrations have greater intensity. The ear contains the external ear, tympanic cavity, and inner ear. Noises above 100 decibels are annoying; prolonged exposure to noise can result in partial deafness.
Credits: The Human Ear
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All about the human ear. Learn the structure of the human ear and how it facilitates hearing, a description of how the ear works, the characteristics of different sounds, sonic contamination, and more!
Length: 17 minutes
Item#: BVL155137
Copyright date: ©2013
Closed Captioned
Prices include public performance rights.
Not available to Home Video, Dealer and Publisher customers.
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