Podcast
Questions and Answers
Which of the following describes the primary function of the middle ear?
Which of the following describes the primary function of the middle ear?
- To collect sound waves.
- To direct sound waves to the inner ear.
- To amplify sound. (correct)
- To interpret sound as nerve signals.
The cochlea is part of the middle ear.
The cochlea is part of the middle ear.
False (B)
What is the role of hair-like cells in the cochlea?
What is the role of hair-like cells in the cochlea?
To vibrate and produce nerve signals
The vibrations in the middle ear are transferred to three tiny bones called the hammer, the anvil, and the ________.
The vibrations in the middle ear are transferred to three tiny bones called the hammer, the anvil, and the ________.
Match the components of the ear with their primary function:
Match the components of the ear with their primary function:
Cupping your hand around your ear enhances hearing sensitivity by:
Cupping your hand around your ear enhances hearing sensitivity by:
The eardrum is located in the outer ear.
The eardrum is located in the outer ear.
What type of energy conversion occurs in the inner ear?
What type of energy conversion occurs in the inner ear?
Sound waves entering the outer ear cause the ________ to vibrate.
Sound waves entering the outer ear cause the ________ to vibrate.
What happens to the nerve signals after they are produced in the inner ear?
What happens to the nerve signals after they are produced in the inner ear?
Flashcards
Outer Ear Function
Outer Ear Function
The outer ear collects sounds.
Middle Ear Function
Middle Ear Function
It sound amplifies sound. The eardrum vibrates transferring vibrations to tiny bones (hammer, anvil, stirrup)
Inner Ear Function
Inner Ear Function
It contains the cochlea with fluid-filled chambers and hairlike cells that vibrate and creates nerve signals.
Eardrum
Eardrum
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Cochlea
Cochlea
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Sense of Hearing
Sense of Hearing
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Study Notes
- Hearing is an interaction of sound waves with matter.
- Sound waves provide information about the environment when they enter the ears.
- Waves interact with different mediums and structures in the ear as they move.
- The human ear has three main parts.
Outer Ear
- The outer ear collects sounds.
- Cupping a hand around the ear makes it a bigger collector and gathers more sounds.
- The ear canal is part of the outer ear.
- The ear canal directs collected sounds to the middle ear.
Middle Ear
- The middle ear amplifies sound.
- The eardrum is a structure like a drumhead that lies between the outer and middle ear.
- Sound waves entering the outer ear cause the eardrum to vibrate.
- Vibrations transfer to three tiny bones called the hammer, the anvil, and the stirrup.
- The vibrations of these bones conduct sound toward the inner ear.
Inner Ear
- The inner ear contains fluid-filled chambers called the cochlea.
- Sound waves passing through the cochlea cause tiny hairlike cells to vibrate.
- The movement of the hair cells produces nerve signals that travel to the brain.
- The brain interprets these signals as sound.
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