MIDTERM-SW1

What is the primary function of the outer ear?

• To transmit sound waves to the inner ear

• To protect the middle ear and amplify sound

• To convert sound waves into electrical signals

• To maintain balance and equilibrium

Which part of the ear is responsible for converting sound vibrations into chemical signals? a) b) c) Inner ear d) Auditory canal

• Outer ear

• Middle ear

• Inner ear

• Auditory canal

What is the role of the ossicles in the middle ear?

• To protect the ear from loud noises

• To amplify and concentrate sound vibrations

• To regulate air pressure in the ear

• To transmit sound directly to the auditory nerve

Why is the inner ear filled with fluid instead of air?

• To protect the delicate hair cells

• To enhance the transmission of sound vibrations

• To maintain a constant temperature

• To prevent damage from loud noises

What is the function of the hair cells or cilia in the cochlea?

• To amplify sound vibrations

• To convert sound vibrations into chemical signals

• To regulate fluid balance in the inner ear

• To protect the ear from infection

How does the middle ear help in transmitting sound to the inner ear?

• By converting sound waves into electrical signals

• By protecting the inner ear from loud noises

• By regulating air pressure in the ear

• By amplifying and concentrating sound vibrations

What is the range of frequencies that the human ear can typically hear? a) b) c) d)

• 0 Hz to 20 kHz

• 10 Hz to 25 kHz

• 20 Hz to 15 kHz

• 50 Hz to 20 kHz

What is the term for the subjective perception of sound frequency? a) b) c) d)

• Loudness

• Amplitude

• Pitch

• Timbre

What is the term for the subjective perception of sound intensity?

• Loudness

• Amplitude

• Pitch

• Timbre

What is the term for the unique quality of a sound that distinguishes it from others? a) b) c) d)

• Loudness

• Amplitude

• Pitch

• Timbre