Quiz: Final Exam Formants are dependent upon vocal tract shape. True False Quest

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Quiz: Final Exam Formants are dependent upon vocal tract shape. True False Question 19 What structure is considered the entrance to the inner ear? The eardum The ossicular chain Both a and b Neither a nor b Question 20 What is the resonance frequency of the ear canal? 1000 dB 1000 Hz 3000 dB 000 Hz D | Question 21 Sound molecules scatter outward from their source until they are collected by the ear or some other receiver True False Question 22 The auricle and external auditory meatus make up the outer ear True False 30

Explanation / Answer

Q18.Formants are dependent upon vocal tract shape:

Ans: True.

Explanation: Formants are the frequency of sound waves that is produced by the vocal cords. In humans, larynx is the structure responsible for the vocal cords that causes speech. Vocal tract is the structure which guides the sound out of the mouth through the larynx such as trachea, esophagus, oral cavity. The shape of vocal tract causes the frequency production of sound just like the shape of the outer ear is responsible for collecting the sound frequencies.

Q19.What structure is considered the entrance to the inner ear?

Ans: Both a and b.

Explanation: The ear drum and the ossicular chain comprise the middle ear. The sound waves hit the ear drum through the outer ear, that is, the ear pinna and the ear canal, and the ear canal transmits the waves to the ear drum. The ear drum transmits the waves to the inner ear through the ossicular chain.

Q20.What is the resonance frequency of the ear canal?

Ans:3000 Hz.

Explanation: Resonance frequency is the event where sound waves cause maximum oscillation in ear canal due to the structure of the ear canal which is transferred to ear drum for processing. Frequency is measured by Hz. The resonance frquency of ear canal is between 2000-4000 Hz.

Q21.Sound molecules scatter outward from their source until they are collected by the ear or some other receiver.

Ans:True.

Explanation: Sound waves mostly originating from vocal cords are designed to be collected by ear pinna and transmitted to ear drum through ear canal. The sound waves can also be picked up by engineered devices like voice recorder.

Q22.The auricle and external auditory meatus make up the outer ear.

Ans:True.

Explanation: The external auditory meatus is also called ear canal which makes up the outer ear along with auricle (ear pinna).The two structures are involved in collecting sound wave and focusing it on the ear drum.

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