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Questions and Answers
What is the function of the pinna and concha in human hearing?
What is the function of the pinna and concha in human hearing?
- They provide a clue as to the elevation of the sound source
- They act as an amplifier (correct)
- They act as an acoustic filter
- They maximize the transmission of sound from the outer to the inner ear
What are the three interconnected bones in the middle ear called?
What are the three interconnected bones in the middle ear called?
- Hammer, anvil, and stirrup
- Pinna, concha, and ossicles
- Oval window, cochlea, and ear canal
- Malleus, incus, and stapes (correct)
What is the function of the bones in the middle ear?
What is the function of the bones in the middle ear?
- They maximize the transmission of sound from the outer to the inner ear (correct)
- They act as an amplifier
- They provide a clue as to the elevation of the sound source
- They act as an acoustic filter
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Study Notes
Human Hearing
- The pinna (also known as the auricle) collects sound waves and directs them into the ear canal, helping to localize sound sources.
- The concha is the shell-shaped area of the outer ear that collects sound waves and directs them into the ear canal.
Middle Ear
- The three interconnected bones in the middle ear are called the ossicles:
- Malleus (hammer)
- Incus (anvil)
- Stapes (stirrup)
- The function of the ossicles is to amplify and transmit sound vibrations from the eardrum to the inner ear, allowing sound waves to be converted into electrical signals that can be interpreted by the brain.
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