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Physiology Quiz -
Physiology of Hearing - Part 1
The auditory system is responsible for converting sound waves in the environment into electrical signals that the brain can receive and utilize as useful information about the sound characteristics of the external environment. Test your basic knowledge of auditory physiology by taking this simple quiz.
(1)   In dry air at 20 °C, sound waves propagate at a speed of __________.
(2)   In water at 20 °C, sound waves propagate at a speed of __________.
(3)   The lowest sound frequency detected by the human auditory system is approximately __________. Assume normal hearing. Frequency is expressed in Hertz (Hz, cycles per second).
(4)   The highest sound frequency detected by the human auditory system is approximately __________. Assume normal hearing. Frequency is expressed in Hertz (Hz, cycles per second).
(5)   The highest sound frequency detected by bats is approximately __________. Frequency is expressed in Hertz (Hz, cycles per second).
(6)   The following bones are considered to be smallest bones in the human body:
(7)   Long exposure to loud sounds can lead to the death of hair cells of the inner ear. However, hair cells can regenerate following noise-induced damage.
(8)   Long exposure to loud sounds (i.e., acoustic overexposure) can lead to irreversible damage to:
(9)   Which inner ear hair cell type is more susceptible to damage resulting from long exposure to loud sounds (i.e., acoustic overexposure)?
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Posted: Monday, October 26, 2015