The Ear. The ear is the sensory organ that allows us to hear. It converts airborne sounds waves into nerve impulses that are decoded by the brain. The Ear. *. Parts of the Ear. Outer ear (external) ______________________ - This is the visible part of the ear.
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The ear is the sensory organ that allows us to hear.
It converts airborne sounds waves into nerve impulses that are decoded by the brain
4) The inner ear
The takeoff or landing of an airplane, the acceleration of an elevator, deep-sea diving, or driving up a steep hill in a car all bring about changes in air pressure which may be experienced as discomfort in the ears. This feeling is the result of increased pressure being exerted on the eardrum, which causes it to bulge on one side or the other, depending where the pressure is higher. Usually the act of yawning, swallowing, or sneezing opens the Eustachian tube, equalizing the pressure on the two sides of the eardrum and relaxing this membrane.
Conductor Auditory Nerve
sound waves the auricle the auditory
canal vibrations the eardrum the
three bones of the middle ear cilia move
(inside cochlea) nerve impulse is
triggered in the auditory nerve the center
for hearing in the brain hearing
3) How does the ear protect itself from unwanted incoming particles? ______________________________________
4) What two structures compose the inner ear?
5) What structure contains the hearing receptor cells?
6) Which part of the ear houses the nerve endings for hearing? ______________________________________
7) When does a person experience the sensation of hearing? ______________________________________